patch 8.1.1625: script line numbers are not exactly right

Problem:    Script line numbers are not exactly right.
Solution:   Handle heredoc and continuation lines better. (Ozaki Kiichi,
            closes #4611, closes #4511)

src/version.c

@@ -777,6 +777,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1625,
 /**/
     1624,
 /**/