updated for version 7.3.887

Problem:    No tests for Visual mode operators, what 7.3.879 fixes.
Solution:   Add a new test file. (David Bürgin)

src/version.c

@@ -728,6 +728,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    887,
 /**/
     886,
 /**/