patch 7.4.2173

Problem:    Can't test help on MS-Windows.
Solution:   Skip the test.

src/testdir/test_startup.vim

@@ -62,6 +62,10 @@ func Test_after_comes_later()
 endfunc
 
 func Test_help_arg()
+  if !has('unix') && has('gui')
+    " this doesn't work with gvim on MS-Windows
+    return
+  endif
   if RunVim([], [], '--help >Xtestout')
     let lines = readfile('Xtestout')
     call assert_true(len(lines) > 20)

src/version.c

@@ -763,6 +763,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2173,
 /**/
     2172,
 /**/