Fix for bug #15558: truncate doesn't clear table on archive storage engine tables.

mysql-test/r/archive.result:
  Fix for bug #15558: truncate doesn't clear table on archive storage engine tables.
    - adjusted result
mysql-test/t/archive.test:
  Fix for bug #15558: truncate doesn't clear table on archive storage engine tables.
    - adjusted test
sql/examples/ha_archive.cc:
  Fix for bug #15558: truncate doesn't clear table on archive storage engine tables.
    - return an error as we don't suport delete_all_rows.

mysql-test/r/archive.result

@@ -2616,6 +2616,7 @@ select count(*) from t4;
 count(*)
 1203
 DELETE FROM t2;
+ERROR HY000: Table storage engine for 't2' doesn't have this option
 SELECT * FROM t2;
 auto	fld1	companynr	fld3	fld4	fld5	fld6
 1	000001	00	Omaha	teethe	neat	
@@ -5033,6 +5034,7 @@ auto	fld1	companynr	fld3	fld4	fld5	fld6
 3	011402	37	Romans	scholastics	jarring	
 4	011403	37	intercepted	audiology	tinily	
 TRUNCATE TABLE t2;
+ERROR HY000: Table storage engine for 't2' doesn't have this option
 SELECT * FROM t2;
 auto	fld1	companynr	fld3	fld4	fld5	fld6
 1	000001	00	Omaha	teethe	neat	

mysql-test/t/archive.test

@@ -1316,12 +1316,14 @@ select count(*) from t4;
 #
 # For bug #12836
 # Delete was allowing all rows to be removed
+--error 1031
 DELETE FROM t2;
 SELECT * FROM t2;
 INSERT INTO t2 VALUES (2,011401,37,'breaking','dreaded','Steinberg','W');
 INSERT INTO t2 VALUES (3,011402,37,'Romans','scholastics','jarring','');
 INSERT INTO t2 VALUES (4,011403,37,'intercepted','audiology','tinily','');
 SELECT * FROM t2;
+--error 1031
 TRUNCATE TABLE t2;
 SELECT * FROM t2;
 

sql/examples/ha_archive.cc

@@ -1010,6 +1010,6 @@ ha_rows ha_archive::records_in_range(uint inx, key_range *min_key,
 int ha_archive::delete_all_rows()
 {
   DBUG_ENTER("ha_archive::delete_all_rows");
-  DBUG_RETURN(0);
+  DBUG_RETURN(HA_ERR_WRONG_COMMAND);
 }
 #endif /* HAVE_ARCHIVE_DB */