Simplify tokenizer whitespace handling

Change-Id: If9c4d7c0c7fdc7d3a088cfe48d87d37579a205d8
diff --git a/src/tokenizer.xfst b/src/tokenizer.xfst
index 9a3c2f4..4a16ec0 100644
--- a/src/tokenizer.xfst
+++ b/src/tokenizer.xfst
@@ -226,8 +226,7 @@
   Emoji @-> ... NLout,
   [Streetname|Omission|Emdash] @-> ... NLout
   ]
-.o. [[WS|NL]+ @-> 0 || NLout _ ]
-.o. [[WS|NL]+ @-> 0 || .#. _ ]
+.o. [[WS|NL]+ @-> 0 || [ .#. | NLout ] _ ]
 ;
 
 echo - Introduce Sentence splitter