'main': Fix issue #623 by fixing the expectations of the regression test of issue #616.

Author: danielshahaf

highlighters/main/test-data/empty-command-newline.zsh

@@ -28,10 +28,12 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
-BUFFER=$':;\n'
+# Newline after semicolon isn't unknown-token
+BUFFER=$':;\n:'
 
 expected_region_highlight=(
   '1 1 builtin' # :
   '2 2 commandseparator' # ;
-  '3 3 issue-623 "issue #616"' # \n
+  '3 3 commandseparator "issue #616"' # \n
+  '4 4 builtin' # :
 )