wolf3d: allow entering in-game jukebox by holding fire button

Change-Id: I8936178191e682b70c64ef6ae04d6636e5cf3521
diff --git a/apps/plugins/sdl/progs/wolf3d/wl_main.c b/apps/plugins/sdl/progs/wolf3d/wl_main.c
index bd164b6..6341964 100644
--- a/apps/plugins/sdl/progs/wolf3d/wl_main.c
+++ b/apps/plugins/sdl/progs/wolf3d/wl_main.c
@@ -1277,7 +1277,13 @@
 // HOLDING DOWN 'M' KEY? (Fire for rockbox)
 //
 #ifndef SPEARDEMO
-    if (Keyboard[sc_Control])
+    /* allow entering jukebox */
+
+    rb->sleep(HZ / 10);
+
+    IN_ProcessEvents();
+
+    if (Keyboard[sc_Return])
     {
         DoJukebox();
         didjukebox=true;