update spf13/cobra dependency to 1.0.0

vendor/github.com/coreos/pkg/capnslog/init.go

@@ -32,7 +32,7 @@ import (
 func init() {
 	initHijack()
 
-	// Go `log` pacakge uses os.Stderr.
+	// Go `log` package uses os.Stderr.
 	SetFormatter(NewDefaultFormatter(os.Stderr))
 	SetGlobalLogLevel(INFO)
 }