Explicitly specify -? as an option in gvpack

diff --git a/cmd/tools/gvpack.c b/cmd/tools/gvpack.c
index b2de4bdd7d81f69a04aa80ee8914ff45abcde464..721625f38b9aad61525964013601cf3ccf715629 100644 (file)
--- a/cmd/tools/gvpack.c
+++ b/cmd/tools/gvpack.c
@@ -195,7 +195,7 @@ static void init(int argc, char *argv[], pack_info* pinfo)
     pinfo->sz = 0;
 
     opterr = 0;
-    while ((c = getopt(argc, argv, ":na:gvum:s:o:G:")) != -1) {
+    while ((c = getopt(argc, argv, ":na:gvum:s:o:G:?")) != -1) {
        switch (c) {
        case 'a':
            len = strlen(optarg) + 2;
@@ -243,7 +243,7 @@ static void init(int argc, char *argv[], pack_info* pinfo)
            fprintf(stderr, "gvpack: option -%c missing argument - ignored\n", optopt);
            break;
        case '?':
-           if (optopt == '?')
+           if (optopt == '\0')
                usage(0);
            else {
                fprintf(stderr,