From: Magnus Jacobsson <magnus.jacobsson@berotec.se>
Date: Sun, 20 Sep 2020 20:55:49 +0000 (+0200)
Subject: Fix smyrna -? to actually print usage instead of error
X-Git-Tag: 2.46.0~20^2^2~55^2~20
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2c6420be0dfc252b7db4207accf40af2170c50e8;p=graphviz

Fix smyrna -? to actually print usage instead of error
---

diff --git a/cmd/smyrna/main.c b/cmd/smyrna/main.c
index b742c370e..4412f9005 100644
--- a/cmd/smyrna/main.c
+++ b/cmd/smyrna/main.c
@@ -134,7 +134,7 @@ static char *parseArgs(int argc, char *argv[], ViewInfo * view)
 	    exit (0);
 	    break;
 	case '?':
-	    if (optopt == '?')
+	    if (optopt == '\0')
 		usage(0);
 	    else
 		fprintf(stderr,