commit d1bd3477da894e9a8da20910e2f942452adbde9e
from: Omar Polo <op@omarpolo.com>
date: Wed Jun 29 14:54:20 2022 UTC

print 'unknown command' when not recognizing the given cmd

commit - 8dc394dfe2c2f0bcf9c47f1b18de4850565076d3
commit + d1bd3477da894e9a8da20910e2f942452adbde9e
blob - c0ab88649e75bfb223f5a8d07a029a2b10be2af5
blob + f3d64d88f8b43125ece9b9b6a53fafc01238207e
--- plass
+++ plass
@@ -53,10 +53,11 @@ my $usage = "[-h] [command argument ...]";
 my $cmd;
 sub usage {
 	my $prog = basename $0;
-	if (defined($cmd)) {
+	if (defined($cmd) and defined($subcmd{$cmd})) {
 		say STDERR "Usage: $prog $cmd $usage";
 	} else {
 		say STDERR "Usage: $prog $usage";
+		say STDERR "unknown command $cmd" if defined($cmd);
 		say STDERR "commands: ", join(' ', sort(keys %subcmd));
 	}
 	exit 1;