patch 8.1.0629: "gn" selects the wrong text with a multi-line match

Problem:    "gn" selects the wrong text with a multi-line match.
Solution:   Get the end position from searchit() directly. (closes #3695)
diff --git a/src/version.c b/src/version.c
index ff22c6d..2155834 100644
--- a/src/version.c
+++ b/src/version.c
@@ -800,6 +800,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    629,
+/**/
     628,
 /**/
     627,