always set optarg in getopt_long

[musl] / src / misc / getopt_long.c

diff --git a/src/misc/getopt_long.c b/src/misc/getopt_long.c
index ffbcd42..bee77f4 100644 (file)
--- a/src/misc/getopt_long.c
+++ b/src/misc/getopt_long.c
@@ -51,7 +51,7 @@ static int __getopt_long(int argc, char *const *argv, const char *optstring, con
 
 static int __getopt_long_core(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly)
 {
-
+       optarg = 0;
        if (longopts && argv[optind][0] == '-' &&
                ((longonly && argv[optind][1]) ||
                 (argv[optind][1] == '-' && argv[optind][2])))