patch 9.1.0229: Error E877 is not translated

Problem:  Error E877 is not translated (RestorerZ)
Solution: Declare the error with N_ to mark it as translatable, add _()
          around the error message in regexp_nfa.c

fixes: #14333

Signed-off-by: Christian Brabandt <cb@256bit.org>

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    229,
 /**/
     228,
 /**/