updated for version 7.3.625
Problem:    "gn" does not handle zero-width matches correctly.
Solution:   Handle zero-width patterns specially. (Christian Brabandt)
diff --git a/src/version.c b/src/version.c
index c8889e4..c381e03 100644
--- a/src/version.c
+++ b/src/version.c
@@ -715,6 +715,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    625,
+/**/
     624,
 /**/
     623,