Check for unparsed command line args.

[lightning.git] / diff.go

diff --git a/diff.go b/diff.go
index 4a328ac75600645b934cd4a9b972fa83c06273b1..4999643e998e09d0fb9bf387e364c1be494acc6e 100644 (file)
--- a/diff.go
+++ b/diff.go
@@ -35,8 +35,7 @@ func (cmd *diffFasta) RunCommand(prog string, args []string, stdin io.Reader, st
                return 0
        } else if err != nil {
                return 2
-       }
-       if len(flags.Args()) != 2 {
+       } else if len(flags.Args()) != 2 {
                err = fmt.Errorf("usage: %s [options] a.fasta b.fasta", prog)
                return 2
        }