patch 8.2.0637: incsearch highlighting does not work for ":sort!"

Problem:    Incsearch highlighting does not work for ":sort!".
Solution:   Skip over the exclamation point. (closes #5983)
diff --git a/src/version.c b/src/version.c
index 7c753e2..28d3179 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    637,
+/**/
     636,
 /**/
     635,