Fix a potential buffer overflow

Highly unlikely to have that many sub models, but it does keep gcc
quiet.

libs/models/brush/model_brush.c

@@ -962,7 +962,7 @@ Mod_LoadBrushModel (model_t *mod, void *buffer)
 
 		if (i < mod->numsubmodels - 1) {
 			// duplicate the basic information
-			char	name[10];
+			char	name[12];
 
 			snprintf (name, sizeof (name), "*%i", i + 1);
 			loadmodel = Mod_FindName (name);