patch 7.4.911
Problem:    t_Ce and t_Cs are documented but not supported. (Hirohito Higashi)
Solution:   Define the options.
diff --git a/src/version.c b/src/version.c
index e8b664f..734f84f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    911,
+/**/
     910,
 /**/
     909,