updated for version 7.3.970
Problem:    Syntax highlighting can be slow.
Solution:   Include the NFA regexp engine.  Add the 'regexpengine' option to
            select which one is used. (various authors, including Ken Takata,
            Andrei Aiordachioaie, Russ Cox, Xiaozhou Liua, Ian Young)
diff --git a/src/version.c b/src/version.c
index b897c09..86c012f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -729,6 +729,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    970,
+/**/
     969,
 /**/
     968,