Make sure that start and end tags for empty texts are counted

For each text, no matter if empty or not, there will be one
start and end tag count in the unigrams.

Change-Id: I9fe769ea3d8a7de7b078499f33a611a7ba4bac4d
diff --git a/src/test/resources/simple_1gram_padded.freq b/src/test/resources/simple_1gram_padded.freq
index 54522cb..b2f1b31 100644
--- a/src/test/resources/simple_1gram_padded.freq
+++ b/src/test/resources/simple_1gram_padded.freq
@@ -1,6 +1,6 @@
+«END»	7
+«START»	7
 .	3
-«END»	3
-«START»	3
 alex	3
 ich	3
 bin	2