Documentation: clarify which parameters are optional to git-cherry

diff --git a/builtin-tag.c b/builtin-tag.c
index 2cdefb1d9a11968ea177f29b9a1334ef5f1d67eb..a3984998915921476a80839a07b133779ece72f3 100644 (file)
--- a/builtin-tag.c
+++ b/builtin-tag.c
@@ -350,7 +350,7 @@ static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
 
 int cmd_tag(int argc, const char **argv, const char *prefix)
 {
-       struct strbuf buf;
+       struct strbuf buf = STRBUF_INIT;
        unsigned char object[20], prev[20];
        char ref[PATH_MAX];
        const char *object_ref, *tag;
@@ -410,7 +410,6 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
        if (verify)
                return for_each_tag_name(argv, verify_tag);
 
-       strbuf_init(&buf, 0);
        if (msg.given || msgfile) {
                if (msg.given && msgfile)
                        die("only one -F or -m option is allowed.");