updated for version 7.3.637
Problem:    Cannot catch the error caused by a foldopen when there is no fold.
            (ZyX, Issue 48)
Solution:   Do not break out of the loop early when inside try/catch.
            (Christian Brabandt) Except when there is a syntax error.
diff --git a/src/version.c b/src/version.c
index 88836bc..b22c901 100644
--- a/src/version.c
+++ b/src/version.c
@@ -720,6 +720,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    637,
+/**/
     636,
 /**/
     635,