patch 8.2.0801: terminal test fails on Mac

Problem:    Terminal test fails on Mac.
Solution:   Concatenate OSC pieces.
diff --git a/src/version.c b/src/version.c
index ede8ad1..68d1db9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    801,
+/**/
     800,
 /**/
     799,