gc: fix off-by-one error with gc.autoPackLimit

diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index f3fb5fb2bf28019dafcbd2bfbd6b1a024aa6da2f..9b0aba2accee0b1984aba859b22b423f0bab5dec 100644 (file)
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -723,7 +723,6 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
 
        if (reflog) {
                unsigned char sha1[20];
-               char nth_desc[256];
                char *ref;
                int base = 0;
                unsigned int flags = 0;
@@ -762,6 +761,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
 
                for (i = 0; i < reflog; i++) {
                        char *logmsg;
+                       char *nth_desc;
                        const char *msg;
                        unsigned long timestamp;
                        int tz;
@@ -780,8 +780,10 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
                                                show_date(timestamp, tz, 1),
                                                msg);
                        free(logmsg);
-                       sprintf(nth_desc, "%s@{%d}", *av, base+i);
+
+                       nth_desc = xstrfmt("%s@{%d}", *av, base+i);
                        append_ref(nth_desc, sha1, 1);
+                       free(nth_desc);
                }
                free(ref);
        }