patch 7.4.1876

Problem:    Typing "k" at the hit-enter prompt has no effect.
Solution:   Don't assume recursive use of the prompt if a character was typed.
            (Hirohito Higashi)

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1876,
 /**/
     1875,
 /**/