patch 8.0.0252: not properly recognizing word characters between 128 and 255

Problem:    Characters below 256 that are not one byte are not always
            recognized as word characters.
Solution:   Make vim_iswordc() and vim_iswordp() work the same way. Add a test
            for this. (Ozaki Kiichi)

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    252,
 /**/
     251,
 /**/