Minor changes.

* libmailutils/datetime/streamftime.c (mu_c_streamftime): Handle
%Z separately.
* libmu_sieve/sieve.y (mu_sieve_compile): Return MU_ERR_PARSE on
errors.

@@ -368,8 +368,15 @@ mu_c_streamftime (mu_stream_t str, const char *fmt, struct tm *input_tm,
 	  rc = mu_stream_printf (str, "%d", tm.tm_year + 1900);
 	  break;
 	  
-	case 'z':
 	case 'Z':
+	  /* The timezone or name or abbreviation. */
+	  if (tz && tz->tz_name)
+	    {
+	      rc = mu_stream_printf (str, "%s", tz->tz_name);
+	      break;
+	    }
+	  /* fall through */
+	case 'z':
 	  /* The time-zone as hour offset from GMT, for formatting RFC-822
 	     dates (e.g. "%a, %d %b %Y %H:%M:%S %z") */
 	  {

@@ -612,13 +612,12 @@ mu_sieve_compile (mu_sieve_machine_t mach, const char *name)
 
   if (mu_sv_lex_begin (name) == 0)
     {
-      rc = yyparse ();
-      if (mu_sieve_error_count)
-	rc = 1;
+      if (yyparse () || mu_sieve_error_count)
+	rc = MU_ERR_PARSE;
       mu_sv_lex_finish ();
     }
   else
-    rc = 1;
+    rc = MU_ERR_FAILURE;
   
   mu_sieve_machine_finish (mach);
   return rc;