patch 8.1.2296: text properties are not combined with syntax by default

Problem:    Text properties are not combined with syntax by default.
Solution:   Make it work as documented. (closes #5190)
diff --git a/src/version.c b/src/version.c
index ae85a95..314f164 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2296,
+/**/
     2295,
 /**/
     2294,