patch 8.1.1650: warning for using uninitialized variable

Problem:    Warning for using uninitialized variable. (Tony Mechelynck)
Solution:   Simplify the code by always using the mouse coordinates.
diff --git a/src/version.c b/src/version.c
index 82f9093..6ad4882 100644
--- a/src/version.c
+++ b/src/version.c
@@ -778,6 +778,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1650,
+/**/
     1649,
 /**/
     1648,