update BUILD files

vendor/github.com/prometheus/client_golang/prometheus/BUILD

@@ -23,6 +23,7 @@ go_library(
         "value.go",
         "vec.go",
     ],
+    importpath = "github.com/prometheus/client_golang/prometheus",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/beorn7/perks/quantile:go_default_library",

vendor/github.com/prometheus/client_golang/prometheus/promhttp/BUILD

@@ -10,6 +10,7 @@ go_library(
         "instrument_client_1_8.go",
         "instrument_server.go",
     ],
+    importpath = "github.com/prometheus/client_golang/prometheus/promhttp",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/prometheus/client_golang/prometheus:go_default_library",

vendor/github.com/prometheus/client_model/go/BUILD

@@ -3,6 +3,7 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library")
 go_library(
     name = "go_default_library",
     srcs = ["metrics.pb.go"],
+    importpath = "github.com/prometheus/client_model/go",
     visibility = ["//visibility:public"],
     deps = ["//vendor/github.com/golang/protobuf/proto:go_default_library"],
 )

vendor/github.com/prometheus/common/expfmt/BUILD

@@ -9,6 +9,7 @@ go_library(
         "text_create.go",
         "text_parse.go",
     ],
+    importpath = "github.com/prometheus/common/expfmt",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/golang/protobuf/proto:go_default_library",

vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/BUILD

@@ -3,6 +3,7 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library")
 go_library(
     name = "go_default_library",
     srcs = ["autoneg.go"],
+    importpath = "github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg",
     visibility = ["//vendor/github.com/prometheus/common:__subpackages__"],
 )
 

vendor/github.com/prometheus/common/model/BUILD

@@ -15,6 +15,7 @@ go_library(
         "time.go",
         "value.go",
     ],
+    importpath = "github.com/prometheus/common/model",
     visibility = ["//visibility:public"],
 )
 

vendor/github.com/prometheus/procfs/BUILD

@@ -16,6 +16,7 @@ go_library(
         "stat.go",
         "xfrm.go",
     ],
+    importpath = "github.com/prometheus/procfs",
     visibility = ["//visibility:public"],
     deps = ["//vendor/github.com/prometheus/procfs/xfs:go_default_library"],
 )

vendor/github.com/prometheus/procfs/xfs/BUILD

@@ -6,6 +6,7 @@ go_library(
         "parse.go",
         "xfs.go",
     ],
+    importpath = "github.com/prometheus/procfs/xfs",
     visibility = ["//visibility:public"],
 )