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Fix command FlagSet output #39

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Fix command FlagSet output #39

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3 changes: 2 additions & 1 deletion subcommands.go
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Original file line number Diff line number Diff line change
Expand Up @@ -184,7 +184,7 @@ func (cdr *Commander) countTopFlags() int {
// Execute should be called once the top-level-flags on a Commander
// have been initialized. It finds the correct subcommand and executes
// it, and returns an ExitStatus with the result. On a usage error, an
// appropriate message is printed to os.Stderr, and ExitUsageError is
// appropriate message is printed to *Commander.Error, and ExitUsageError is
// returned. The additional args are provided as-is to the Execute method
// of the selected Command.
func (cdr *Commander) Execute(ctx context.Context, args ...interface{}) ExitStatus {
Expand All @@ -201,6 +201,7 @@ func (cdr *Commander) Execute(ctx context.Context, args ...interface{}) ExitStat
continue
}
f := flag.NewFlagSet(name, flag.ContinueOnError)
f.SetOutput(cdr.Error)
f.Usage = func() { cdr.ExplainCommand(cdr.Error, cmd) }
cmd.SetFlags(f)
if f.Parse(cdr.topFlags.Args()[1:]) != nil {
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