patch 8.2.2549: crash after using "g:" in a for loop

Problem:    Crash after using "g:" in a for loop.
Solution:   Increment the reference count. (closes #7892)
diff --git a/src/version.c b/src/version.c
index 3d52e49..ff82645 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2549,
+/**/
     2548,
 /**/
     2547,