patch 8.2.4443: regexp pattern test fails on Mac

Problem:    Regexp pattern test fails on Mac.
Solution:   Do not use a swapfile for the buffer.
diff --git a/src/version.c b/src/version.c
index deb79eb..05e5229 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4443,
+/**/
     4442,
 /**/
     4441,