fix(vet): fix a number of lint/vet warnings

cmd/helm/dm.go

@@ -27,7 +27,7 @@ func uninstall(dryRun bool) error {
 
 	out, err := dm.Uninstall(runner)
 	if err != nil {
-		format.Error("Error uninstalling: %s %s", out, err)
+		format.Err("Error uninstalling: %s %s", out, err)
 	}
 	format.Msg(out)
 	return nil

cmd/helm/doctor.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"github.com/deis/helm-dm/dm"
+	"github.com/deis/helm-dm/format"
 	"github.com/deis/helm-dm/kubectl"
 )
 

dm/uninstall.go

@@ -4,7 +4,7 @@ import (
 	"github.com/deis/helm-dm/kubectl"
 )
 
-// uninstall uses kubectl to uninstall the base DM.
+// Uninstall uses kubectl to uninstall the base DM.
 //
 // Returns the string output received from the operation, and an error if the
 // command failed.

format/messages.go

@@ -24,11 +24,13 @@ func Msg(msg string, v ...interface{}) {
 	fmt.Fprintf(os.Stdout, msg, v...)
 }
 
+// Success is an achievement marked by pretty output.
 func Success(msg string, v ...interface{}) {
 	msg = "[Success] " + msg + "\n"
 	fmt.Fprintf(os.Stdout, msg, v...)
 }
 
+// Warning emits a warning message.
 func Warning(msg string, v ...interface{}) {
 	msg = "[Warning] " + msg + "\n"
 	fmt.Fprintf(os.Stdout, msg, v...)