macosx: playlistinfo.m. small typo which caused ObjC exception and froze...

macosx: playlistinfo.m. small typo which caused ObjC exception and froze interface updates and screensaver management, etc...

modules/gui/macosx/playlistinfo.m

@@ -201,7 +201,7 @@
 
 #define SET( foo, bar ) \
     char *psz_##foo = input_item_Get##bar ( p_item->p_input ); \
-    [self setMeta: psz_##foo forlabel: o_##foo##_txt]; \
+    [self setMeta: psz_##foo forLabel: o_##foo##_txt]; \
     free( psz_##foo );
 
     /* fill the other fields */