const-ify parameter to strtonum

1 files changed, 2 insertions, 2 deletions

diff --git a/gmid.c b/gmid.c
index bfdf9a8..227c60b 100644
--- a/gmid.c
+++ b/gmid.c
@@ -199,8 +199,8 @@ yyerror(const char *msg)
 int
 parse_portno(const char *p)
 {
-	char	*errstr;
-	int	 n;
+	const char *errstr;
+	int n;
 
 	n = strtonum(p, 0, UINT16_MAX, &errstr);
 	if (errstr != NULL)