patch 7.4.2173
Problem:    Can't test help on MS-Windows.
Solution:   Skip the test.
diff --git a/src/version.c b/src/version.c
index a7af293..9cf031b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -764,6 +764,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2173,
+/**/
     2172,
 /**/
     2171,