fix [ --help ] and [[ --help ]]

function                                             old     new   delta
show_usage_if_dash_dash_help                          72      79      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index 9b9d7dbd6..d5335d353 100644
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -938,6 +938,9 @@ void FAST_FUNC show_usage_if_dash_dash_help(int applet_no, char **argv)
 #  if defined APPLET_NO_echo
          && applet_no != APPLET_NO_echo
 #  endif
+#  if ENABLE_TEST1 || ENABLE_TEST2
+         && argv[0][0] != '[' /* exclude [ --help ] and [[ --help ]] too */
+#  endif
         ) {
                 if (argv[1] && strcmp(argv[1], "--help") == 0) {
                         /* Make "foo --help [...]" exit with 0: */