Merge branch 'jk/revert-squelch-compiler-warning'

Squelch false-positive compiler warning.

* jk/revert-squelch-compiler-warning:
  revert: initialize const value

builtin/revert.c

@@ -111,7 +111,7 @@ static int run_sequencer(int argc, const char **argv, const char *prefix,
 	const char * const * usage_str = revert_or_cherry_pick_usage(opts);
 	const char *me = action_name(opts);
 	const char *cleanup_arg = NULL;
-	const char sentinel_value;
+	const char sentinel_value = 0; /* value not important */
 	const char *strategy = &sentinel_value;
 	const char *gpg_sign = &sentinel_value;
 	enum empty_action empty_opt = EMPTY_COMMIT_UNSPECIFIED;