patch 8.1.1365: source command doesn't check for the sandbox

Problem:    Source command doesn't check for the sandbox. (Armin Razmjou)
Solution:   Check for the sandbox when sourcing a file.
diff --git a/src/version.c b/src/version.c
index b0736df..b2fcbfb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -768,6 +768,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1365,
+/**/
     1364,
 /**/
     1363,