patch 7.4.1793
Problem:    Some character classes may differ between systems.  On OS/X the
            regexp test fails.
Solution:   Make this less dependent on the system. (idea by Kazunobu Kuriyama)
diff --git a/src/version.c b/src/version.c
index 8b713ca..56af2f0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1793,
+/**/
     1792,
 /**/
     1791,