From 2adac0a6377ce9779f2db7ba05f3769e30a7a5a6 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Mon, 13 Sep 1999 13:45:32 +0000
Subject: [PATCH] Tim Peters discovered a bug in the Python-supplied getopt():
 it doesn't recognize a lone dash as a non-flag argument. Now it does.

---
 Python/getopt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Python/getopt.c b/Python/getopt.c
index 5175e0a3ded..c5a3f626818 100644
--- a/Python/getopt.c
+++ b/Python/getopt.c
@@ -55,7 +55,8 @@ int getopt( int argc, char *const *argv, const char *optstring )
 
 	if (*opt_ptr == '\0') {
 
-		if (optind >= argc || argv[optind][0] != '-')
+		if (optind >= argc || argv[optind][0] != '-' ||
+		    argv[optind][1] == '\0' /* lone dash */ )
 			return -1;
 
 		else if (strcmp(argv[optind], "--") == 0) {