Merge lp:~percona-toolkit-dev/percona-toolkit/typo-in-pt-variable-advisor-1303388 into lp:~percona-toolkit-dev/percona-toolkit/release-2.2.11

[Frank Cizmich]

expire_logs_days variable was incorrectly named expire_log_days.
This prevented the tool from issuing the corresponding warning when it was set to 0 with binlog ON.

[Daniel Nichter (daniel-nichter)]

You can merge clear-cut, unarguable fixes like this without a review.

review: Approve

=== modified file 'bin/pt-variable-advisor'
--- bin/pt-variable-advisor	2014-08-05 20:37:42 +0000
+++ bin/pt-variable-advisor	2014-09-15 20:12:17 +0000
@@ -3601,10 +3601,10 @@
       },
    },
    {
-      id   => 'expire_log_days',
+      id   => 'expire_logs_days',
       code => sub {
          my ( %args ) = @_;
-         return _var_eq($args{variables}->{expire_log_days}, 0)
+         return _var_eq($args{variables}->{expire_logs_days}, 0)
             && _var_seq($args{variables}->{log_bin}, "ON");
       },
    },
@@ -5720,7 +5720,7 @@
 Most applications should use the default REPEATABLE-READ transaction
 isolation level, or in a few cases READ-COMMITTED.
 
-=item expire_log_days
+=item expire_logs_days
 
 severity: warn