remove padding for null tags in tag table

Author: dfrg

scripts/gen-tag-table.py

@@ -882,7 +882,7 @@ def rank_delta(bcp_47, ot):
 
 def hb_tag(tag):
     if tag == DEFAULT_LANGUAGE_SYSTEM:
-        return 'Tag::new(&[0; 4])\t           '
+        return 'Tag::new(&[0; 4])'
     return 'Tag::new(b\"%s%s%s%s\")' % tuple(('%-4s' % tag)[:4])