1. docker
  2. Commit 089bf5e11e4284a6ed07dc165098bb269dfddf46
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fix usage for completly deprecated flag

Docker-DCO-1.1-Signed-off-by: Victor Vieux <victor.vieux@docker.com> (github: vieux)

Victor Vieux authored on 2014/03/06 04:27:39
Showing 2 changed files
pkg/mflag/example/example.go
History View file @ 089bf5e
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@@ -12,6 +12,7 @@ var (
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 )
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 func init() {
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+	flag.Bool([]string{"#hp", "#-halp"}, false, "display the halp")
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 	flag.BoolVar(&b, []string{"b"}, false, "a simple bool")
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 	flag.BoolVar(&b2, []string{"-bool"}, false, "a simple bool")
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 	flag.IntVar(&i, []string{"#integer", "-integer"}, -1, "a simple integer")
pkg/mflag/flag.go
History View file @ 089bf5e
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@@ -404,7 +404,9 @@ func (f *FlagSet) PrintDefaults() {
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 				names = append(names, name)
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 			}
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 		}
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-		fmt.Fprintf(f.out(), format, strings.Join(names, ", -"), flag.DefValue, flag.Usage)
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+		if len(names) > 0 {
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+			fmt.Fprintf(f.out(), format, strings.Join(names, ", -"), flag.DefValue, flag.Usage)
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+		}
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 	})
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 }
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