apply: make --verbose a little more useful

When a patch fails, I automatically add '-v' to the command line
to see what fails.

This patch makes -v a synonym to --verbose, and actually tells
the user which text was not found.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

builtin-apply.c

@@ -1655,6 +1655,8 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag, i
 			/* Ignore it, we already handled it */
 			break;
 		default:
+			if (apply_verbosely)
+				error("invalid start of line: '%c'", first);
 			return -1;
 		}
 		patch += len;
@@ -1752,6 +1754,9 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag, i
 		}
 	}
 
+	if (offset && apply_verbosely)
+		error("while searching for:\n%.*s", oldsize, oldlines);
+
 	free(old);
 	free(new);
 	return offset;
@@ -2692,7 +2697,7 @@ int cmd_apply(int argc, const char **argv, const char *unused_prefix)
 			apply = apply_with_reject = apply_verbosely = 1;
 			continue;
 		}
-		if (!strcmp(arg, "--verbose")) {
+		if (!strcmp(arg, "-v") || !strcmp(arg, "--verbose")) {
 			apply_verbosely = 1;
 			continue;
 		}