applied Jukka's patch

diff --git a/tile.c b/tile.c
index e1c68f8..386832d 100644 (file)
--- a/tile.c
+++ b/tile.c
@@ -16,7 +16,9 @@ addtomwfact(const char *arg) {
                return;
 
        /* arg handling, manipulate mwfact */
-       if(arg && (1 == sscanf(arg, "%lf", &delta))) {
+       if(arg == NULL)
+               mwfact = MWFACT;
+       else if(1 == sscanf(arg, "%lf", &delta)) {
                if(delta + mwfact > 0.1 && delta + mwfact < 0.9)
                        mwfact += delta;
        }