patch 8.2.0738: mouse handling in a terminal window not well tested

Problem:    Mouse handling in a terminal window not well tested.
Solution:   Add tests. (Yegappan Lakshmanan, closes #6052)
diff --git a/src/version.c b/src/version.c
index 31d83ce..317b344 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    738,
+/**/
     737,
 /**/
     736,