updated for version 7.3.703

Problem:    When 'undofile' is reset the hash is computed unnecessarily.
Solution:   Only compute the hash when the option was set. (Christian Brabandt)

src/version.c

@@ -719,6 +719,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    703,
 /**/
     702,
 /**/