patch 7.4.1693

Problem:    Building the Perl interface gives compiler warnings.
Solution:   Remove a pragma. Add noreturn attributes. (Damien)

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1693,
 /**/
     1692,
 /**/