patch 8.2.2510: internal error when popup with mask is zero height or width

Problem:    Internal error when popup with mask is zero height or width.
Solution:   Bail out if width or height is zero. (closes #7831)
diff --git a/src/version.c b/src/version.c
index 5601c58..264df9b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2510,
+/**/
     2509,
 /**/
     2508,