patch 9.1.0880: filetype: C3 files are not recognized

Problem:  filetype: C3 files are not recognized
Solution: detect '*.c3*' files as c3 filetype (Turiiya)

closes: #16087

Signed-off-by: Turiiya <34311583+ttytm@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 0ffb001..fe1246a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    880,
+/**/
     879,
 /**/
     878,