merge from latest 5.5

mysql-test/suite/parts/inc/partition_check_drop.inc

@@ -37,7 +37,7 @@ if ($do_file_tests)
   eval SET @aux = load_file('$ls_file');
 
   # clean up
-  remove_file $ls_file;
+  --remove_file $ls_file
 }
 if (!$do_file_tests)
 {

mysql-test/suite/parts/inc/partition_layout_check1.inc

@@ -45,6 +45,9 @@ if ($do_file_tests)
     --list_files_append_file $ls_file $MYSQLTEST_VARDIR/mysql-test-idx-dir t1*
   }
   eval SET @aux = load_file('$ls_file');
+
+  # clean up
+  --remove_file $ls_file
 }
 if (!$do_file_tests)
 {

mysql-test/suite/parts/inc/partition_layout_check2.inc

@@ -43,6 +43,9 @@ if ($do_file_tests)
     --list_files_append_file $ls_file $MYSQLTEST_VARDIR/mysql-test-idx-dir t1*
   }
   eval SET @aux = load_file('$ls_file');
+
+  # clean up
+  --remove_file $ls_file
 }
 if (!$do_file_tests)
 {