repack: make parsed string options const-correct

When we use OPT_STRING to parse an option, we get back a
pointer into the argv array, which should be "const char *".
The compiler doesn't notice because it gets passed through a
"void *" in the option struct.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/repack.c b/builtin/repack.c
index 512a53afd854961a5af23b5e696990992419def4..3dbb0ed199bf81a814dd4bc71deabf0dcdd7ffb1 100644 (file)
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -129,7 +129,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
        /* variables to be filled by option parsing */
        int pack_everything = 0;
        int delete_redundant = 0;
-       char *unpack_unreachable = NULL;
+       const char *unpack_unreachable = NULL;
        int window = 0, window_memory = 0;
        int depth = 0;
        int max_pack_size = 0;