updated for version 7.3.527

Problem:    Clang complains about non-ASCII characters in a string.
Solution:   Change to \x88 form. (Dominique Pelle)

src/version.c

@@ -714,6 +714,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    527,
 /**/
     526,
 /**/