patch 7.4.1944
Problem:    Win32: Cannot compile with XPM feature using VC2015
Solution:   Add XPM libraries compiled with VC2015, and enable to build
            gvim.exe which supports XPM using VC2015. (Ken Takata)
diff --git a/src/version.c b/src/version.c
index 52097f6..d1683fe 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1944,
+/**/
     1943,
 /**/
     1942,