patch 8.2.1985: crash when closing terminal popup with <Cmd> mapping

Problem:    Crash when closing terminal popup with <Cmd> mapping.
Solution:   Check b_term is not NULL. (closes #7294)
diff --git a/src/version.c b/src/version.c
index 8d21a4a..8174386 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1985,
+/**/
     1984,
 /**/
     1983,