From: Magnus Jacobsson <magnus.jacobsson@berotec.se>
Date: Sun, 6 Sep 2020 14:45:58 +0000 (+0200)
Subject: Fix gvedit -? to actually print usage instead of error
X-Git-Tag: 2.46.0~20^2^2~88^2~8
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=11e22d42b3606303771b89b417069a7e568aa1d7;p=graphviz

Fix gvedit -? to actually print usage instead of error

Fixes https://gitlab.com/graphviz/graphviz/-/issues/1813
---

diff --git a/cmd/gvedit/main.cpp b/cmd/gvedit/main.cpp
index bb4c2546b..76a0ed643 100644
--- a/cmd/gvedit/main.cpp
+++ b/cmd/gvedit/main.cpp
@@ -66,7 +66,7 @@ static char **parseArgs(int argc, char *argv[])
 	    Verbose = 1;
 	    break;
 	case '?':
-	    if (optopt == '?')
+	    if (optopt == '\0')
 		usage(0);
 	    else
 		errout << cmd << " : option -" << ((char) optopt) <<