PT-141 added --output-format to pt-archiver

t/pt-archiver/samples/table2.sql

@@ -0,0 +1,19 @@
+CREATE SCHEMA IF NOT EXISTS test;
+use test;
+drop table if exists table_2;
+
+create table table_2(
+   a int not null primary key,
+   b int,
+   c int not null,
+   d varchar(50),
+   key(b)
+) engine=innodb;
+
+insert into table_2 values
+   (1, 2,    3, 4),
+   (2, null, 3, 4),
+   (3, 2,    3, "\t"),
+   (4, 2,    3, "\n"),
+   (5, 2,    3, "Zapp \"Brannigan");
+