mainconfig.c: avoid 2 warnings

* exec/mainconfig.c (uid_determine, gid_determine): Add const.

git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1962 fd59a12c-fef9-0310-b244-a6a79926bd2f

exec/mainconfig.c

@@ -289,7 +289,7 @@ parse_error:
 	return (-1);
 }
 
-static int uid_determine (char *req_user)
+static int uid_determine (const char *req_user)
 {
 	struct passwd *passwd;
 	int ais_uid = 0;
@@ -304,7 +304,7 @@ static int uid_determine (char *req_user)
 	return ais_uid;
 }
 
-static int gid_determine (char *req_group)
+static int gid_determine (const char *req_group)
 {
 	struct group *group;
 	int ais_gid = 0;