Fix missing vendor packages

The switch to urfave/cli had a use of a /v2 API, which
go modules handles correctly but vndr ignores. Downgrade
urfave/cli for now until the switch to go modules. Add
missing dependencies, which vndr now sees.
Note that CI was not catching this issue, it seems that
some part of the build process was pulling in dependencies
even if they weren't in vendor, causing the build to work.
However the vendor check was not seeing it. The ARM build
didn't pull in other dependencies into the gopath, causing
those builds to break.

Signed-off-by: Derek McGowan <derek@mcgstyle.net>

vendor/github.com/cpuguy83/go-md2man/LICENSE.md

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Brian Goff
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/github.com/cpuguy83/go-md2man/README.md

@@ -0,0 +1,21 @@
+go-md2man
+=========
+
+** Work in Progress **
+This still needs a lot of help to be complete, or even usable!
+
+Uses blackfriday to process markdown into man pages.
+
+### Usage
+
+./md2man -in /path/to/markdownfile.md -out /manfile/output/path
+
+### How to contribute
+
+We use [dep](https://github.com/golang/dep/) for vendoring Go packages.
+See dep documentation for how to update.
+
+### TODO
+
+- Needs oh so much testing love
+- Look into blackfriday's 2.0 API

vendor/github.com/cpuguy83/go-md2man/go.mod

@@ -0,0 +1,5 @@
+module github.com/cpuguy83/go-md2man
+
+go 1.12
+
+require github.com/russross/blackfriday v1.5.2

vendor/github.com/cpuguy83/go-md2man/md2man/md2man.go

@@ -0,0 +1,20 @@
+package md2man
+
+import (
+	"github.com/russross/blackfriday"
+)
+
+// Render converts a markdown document into a roff formatted document.
+func Render(doc []byte) []byte {
+	renderer := RoffRenderer(0)
+	extensions := 0
+	extensions |= blackfriday.EXTENSION_NO_INTRA_EMPHASIS
+	extensions |= blackfriday.EXTENSION_TABLES
+	extensions |= blackfriday.EXTENSION_FENCED_CODE
+	extensions |= blackfriday.EXTENSION_AUTOLINK
+	extensions |= blackfriday.EXTENSION_SPACE_HEADERS
+	extensions |= blackfriday.EXTENSION_FOOTNOTES
+	extensions |= blackfriday.EXTENSION_TITLEBLOCK
+
+	return blackfriday.Markdown(doc, renderer, extensions)
+}

vendor/github.com/cpuguy83/go-md2man/md2man/roff.go

@@ -0,0 +1,285 @@
+package md2man
+
+import (
+	"bytes"
+	"fmt"
+	"html"
+	"strings"
+
+	"github.com/russross/blackfriday"
+)
+
+type roffRenderer struct {
+	ListCounters []int
+}
+
+// RoffRenderer creates a new blackfriday Renderer for generating roff documents
+// from markdown
+func RoffRenderer(flags int) blackfriday.Renderer {
+	return &roffRenderer{}
+}
+
+func (r *roffRenderer) GetFlags() int {
+	return 0
+}
+
+func (r *roffRenderer) TitleBlock(out *bytes.Buffer, text []byte) {
+	out.WriteString(".TH ")
+
+	splitText := bytes.Split(text, []byte("\n"))
+	for i, line := range splitText {
+		line = bytes.TrimPrefix(line, []byte("% "))
+		if i == 0 {
+			line = bytes.Replace(line, []byte("("), []byte("\" \""), 1)
+			line = bytes.Replace(line, []byte(")"), []byte("\" \""), 1)
+		}
+		line = append([]byte("\""), line...)
+		line = append(line, []byte("\" ")...)
+		out.Write(line)
+	}
+	out.WriteString("\n")
+
+	// disable hyphenation
+	out.WriteString(".nh\n")
+	// disable justification (adjust text to left margin only)
+	out.WriteString(".ad l\n")
+}
+
+func (r *roffRenderer) BlockCode(out *bytes.Buffer, text []byte, lang string) {
+	out.WriteString("\n.PP\n.RS\n\n.nf\n")
+	escapeSpecialChars(out, text)
+	out.WriteString("\n.fi\n.RE\n")
+}
+
+func (r *roffRenderer) BlockQuote(out *bytes.Buffer, text []byte) {
+	out.WriteString("\n.PP\n.RS\n")
+	out.Write(text)
+	out.WriteString("\n.RE\n")
+}
+
+func (r *roffRenderer) BlockHtml(out *bytes.Buffer, text []byte) { // nolint: golint
+	out.Write(text)
+}
+
+func (r *roffRenderer) Header(out *bytes.Buffer, text func() bool, level int, id string) {
+	marker := out.Len()
+
+	switch {
+	case marker == 0:
+		// This is the doc header
+		out.WriteString(".TH ")
+	case level == 1:
+		out.WriteString("\n\n.SH ")
+	case level == 2:
+		out.WriteString("\n.SH ")
+	default:
+		out.WriteString("\n.SS ")
+	}
+
+	if !text() {
+		out.Truncate(marker)
+		return
+	}
+}
+
+func (r *roffRenderer) HRule(out *bytes.Buffer) {
+	out.WriteString("\n.ti 0\n\\l'\\n(.lu'\n")
+}
+
+func (r *roffRenderer) List(out *bytes.Buffer, text func() bool, flags int) {
+	marker := out.Len()
+	r.ListCounters = append(r.ListCounters, 1)
+	out.WriteString("\n.RS\n")
+	if !text() {
+		out.Truncate(marker)
+		return
+	}
+	r.ListCounters = r.ListCounters[:len(r.ListCounters)-1]
+	out.WriteString("\n.RE\n")
+}
+
+func (r *roffRenderer) ListItem(out *bytes.Buffer, text []byte, flags int) {
+	if flags&blackfriday.LIST_TYPE_ORDERED != 0 {
+		out.WriteString(fmt.Sprintf(".IP \"%3d.\" 5\n", r.ListCounters[len(r.ListCounters)-1]))
+		r.ListCounters[len(r.ListCounters)-1]++
+	} else {
+		out.WriteString(".IP \\(bu 2\n")
+	}
+	out.Write(text)
+	out.WriteString("\n")
+}
+
+func (r *roffRenderer) Paragraph(out *bytes.Buffer, text func() bool) {
+	marker := out.Len()
+	out.WriteString("\n.PP\n")
+	if !text() {
+		out.Truncate(marker)
+		return
+	}
+	if marker != 0 {
+		out.WriteString("\n")
+	}
+}
+
+func (r *roffRenderer) Table(out *bytes.Buffer, header []byte, body []byte, columnData []int) {
+	out.WriteString("\n.TS\nallbox;\n")
+
+	maxDelims := 0
+	lines := strings.Split(strings.TrimRight(string(header), "\n")+"\n"+strings.TrimRight(string(body), "\n"), "\n")
+	for _, w := range lines {
+		curDelims := strings.Count(w, "\t")
+		if curDelims > maxDelims {
+			maxDelims = curDelims
+		}
+	}
+	out.Write([]byte(strings.Repeat("l ", maxDelims+1) + "\n"))
+	out.Write([]byte(strings.Repeat("l ", maxDelims+1) + ".\n"))
+	out.Write(header)
+	if len(header) > 0 {
+		out.Write([]byte("\n"))
+	}
+
+	out.Write(body)
+	out.WriteString("\n.TE\n")
+}
+
+func (r *roffRenderer) TableRow(out *bytes.Buffer, text []byte) {
+	if out.Len() > 0 {
+		out.WriteString("\n")
+	}
+	out.Write(text)
+}
+
+func (r *roffRenderer) TableHeaderCell(out *bytes.Buffer, text []byte, align int) {
+	if out.Len() > 0 {
+		out.WriteString("\t")
+	}
+	if len(text) == 0 {
+		text = []byte{' '}
+	}
+	out.Write([]byte("\\fB\\fC" + string(text) + "\\fR"))
+}
+
+func (r *roffRenderer) TableCell(out *bytes.Buffer, text []byte, align int) {
+	if out.Len() > 0 {
+		out.WriteString("\t")
+	}
+	if len(text) > 30 {
+		text = append([]byte("T{\n"), text...)
+		text = append(text, []byte("\nT}")...)
+	}
+	if len(text) == 0 {
+		text = []byte{' '}
+	}
+	out.Write(text)
+}
+
+func (r *roffRenderer) Footnotes(out *bytes.Buffer, text func() bool) {
+
+}
+
+func (r *roffRenderer) FootnoteItem(out *bytes.Buffer, name, text []byte, flags int) {
+
+}
+
+func (r *roffRenderer) AutoLink(out *bytes.Buffer, link []byte, kind int) {
+	out.WriteString("\n\\[la]")
+	out.Write(link)
+	out.WriteString("\\[ra]")
+}
+
+func (r *roffRenderer) CodeSpan(out *bytes.Buffer, text []byte) {
+	out.WriteString("\\fB\\fC")
+	escapeSpecialChars(out, text)
+	out.WriteString("\\fR")
+}
+
+func (r *roffRenderer) DoubleEmphasis(out *bytes.Buffer, text []byte) {
+	out.WriteString("\\fB")
+	out.Write(text)
+	out.WriteString("\\fP")
+}
+
+func (r *roffRenderer) Emphasis(out *bytes.Buffer, text []byte) {
+	out.WriteString("\\fI")
+	out.Write(text)
+	out.WriteString("\\fP")
+}
+
+func (r *roffRenderer) Image(out *bytes.Buffer, link []byte, title []byte, alt []byte) {
+}
+
+func (r *roffRenderer) LineBreak(out *bytes.Buffer) {
+	out.WriteString("\n.br\n")
+}
+
+func (r *roffRenderer) Link(out *bytes.Buffer, link []byte, title []byte, content []byte) {
+	out.Write(content)
+	r.AutoLink(out, link, 0)
+}
+
+func (r *roffRenderer) RawHtmlTag(out *bytes.Buffer, tag []byte) { // nolint: golint
+	out.Write(tag)
+}
+
+func (r *roffRenderer) TripleEmphasis(out *bytes.Buffer, text []byte) {
+	out.WriteString("\\s+2")
+	out.Write(text)
+	out.WriteString("\\s-2")
+}
+
+func (r *roffRenderer) StrikeThrough(out *bytes.Buffer, text []byte) {
+}
+
+func (r *roffRenderer) FootnoteRef(out *bytes.Buffer, ref []byte, id int) {
+
+}
+
+func (r *roffRenderer) Entity(out *bytes.Buffer, entity []byte) {
+	out.WriteString(html.UnescapeString(string(entity)))
+}
+
+func (r *roffRenderer) NormalText(out *bytes.Buffer, text []byte) {
+	escapeSpecialChars(out, text)
+}
+
+func (r *roffRenderer) DocumentHeader(out *bytes.Buffer) {
+}
+
+func (r *roffRenderer) DocumentFooter(out *bytes.Buffer) {
+}
+
+func needsBackslash(c byte) bool {
+	for _, r := range []byte("-_&\\~") {
+		if c == r {
+			return true
+		}
+	}
+	return false
+}
+
+func escapeSpecialChars(out *bytes.Buffer, text []byte) {
+	for i := 0; i < len(text); i++ {
+		// escape initial apostrophe or period
+		if len(text) >= 1 && (text[0] == '\'' || text[0] == '.') {
+			out.WriteString("\\&")
+		}
+
+		// directly copy normal characters
+		org := i
+
+		for i < len(text) && !needsBackslash(text[i]) {
+			i++
+		}
+		if i > org {
+			out.Write(text[org:i])
+		}
+
+		// escape a character
+		if i >= len(text) {
+			break
+		}
+		out.WriteByte('\\')
+		out.WriteByte(text[i])
+	}
+}