games/glendy: don't use lucida sans in menus by default and bugfix (thanks kemal)

i have found one bug. when i put glenda in a position like this

i somehow win, but the glenda can escape from there.

in addition, i have changed the games manpage to include more info about glendy.

sys/man/1/games

@@ -200,7 +200,9 @@ and
 add gibberish diagrams, equations and tables.
 .TP
 .B glendy
-Don't let the rabbit escape.
+Don't let the rabbit escape. Button 2 presents a menu that you
+can set the difficulty level from. Button 3 presents a menu
+that you can either play a new game, reset the game or exit.
 .TP
 .B juggle
 Display the juggling

sys/src/games/glendy.c

@@ -386,7 +386,7 @@ nextglenda(void)
 			nextdir = (nrand(++count) == 0)?dir:nextdir;
 		}
 	}
-	if(min < 100)
+	if(min <= 100)
 		domove(nextdir, p.x, p.y);
 	else
 		finished = Won;
@@ -459,7 +459,6 @@ main(int argc, char **argv)
 	Mouse m;
 	Event ev;
 	int e, mousedown=0;
-	char *fontname;
 
 	USED(argv, argc);
 
@@ -475,10 +474,6 @@ main(int argc, char **argv)
 	initlevel();	/* must happen before "eresized" */
 	eresized(0);
 
-	fontname = "/lib/font/bit/lucidasans/unicode.8.font";
-	if((font = openfont(display, fontname)) == nil)
-		sysfatal("font '%s' not found", fontname);	
-
 	for(;;) {
 		e = event(&ev);
 		switch(e) {