patch 8.1.0049: shell cannot tell running in a terminal window

Problem:    Shell cannot tell running in a terminal window.
Solution:   Add the VIM_TERMINAL environment variable. (Christian Brabandt)
diff --git a/src/version.c b/src/version.c
index fc68f8e..770eea8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    49,
+/**/
     48,
 /**/
     47,