patch 8.1.0743: giving error messages is not flexible

Problem:    Giving error messages is not flexible.
Solution:   Add semsg().  Change argument from "char_u *" to "char *", also
            for msg() and get rid of most MSG macros. (Ozaki Kiichi, closes
            #3302)  Also make emsg() accept a "char *" argument.  Get rid of
            an enormous number of type casts.
diff --git a/src/version.c b/src/version.c
index ec50b49..d40380c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -796,6 +796,10 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    743,
+/**/
+    743,
+/**/
     742,
 /**/
     741,