updated for version 7.3.878

Problem:    'fileignorecase' is missing in options window and quickref.
Solution:   Add the option.

src/version.c

@@ -728,6 +728,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    878,
 /**/
     877,
 /**/