fix: Corrected dumpdir variable usage and updated version to 2.7.1.

Author: jmrenouard

mysqltuner.pl

@@ -59,7 +59,7 @@ package main;
 my $is_win = $^O eq 'MSWin32';
 
 # Set up a few variables for use in the script
-my $tunerversion = "2.7.0";
+my $tunerversion = "2.7.1";
 my ( @adjvars, @generalrec );
 
 # Set defaults
@@ -2923,7 +2923,7 @@ sub check_storage_engines {
 "SELECT TABLE_SCHEMA, TABLE_NAME, ENGINE, CAST(DATA_FREE AS SIGNED) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema', 'performance_schema', 'mysql') AND DATA_LENGTH/1024/1024>100 AND cast(DATA_FREE as signed)*100/(DATA_LENGTH+INDEX_LENGTH+cast(DATA_FREE as signed)) > 10 AND NOT ENGINE='MEMORY' $not_innodb"
           ];
         $fragtables = scalar @{ $result{'Tables'}{'Fragmented tables'} };
-        if ($dumpdir -ne '') {
+        if ($opt{dumpdir} ne '') {
           select_csv_file(
             "$opt{dumpdir}/fragmented_tables.csv", 
             "SELECT TABLE_SCHEMA, TABLE_NAME, ENGINE, CAST(DATA_FREE AS SIGNED) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema', 'performance_schema', 'mysql') AND DATA_LENGTH/1024/1024>100 AND cast(DATA_FREE as signed)*100/(DATA_LENGTH+INDEX_LENGTH+cast(DATA_FREE as signed)) > 10 AND NOT ENGINE='MEMORY' $not_innodb"
@@ -7932,7 +7932,7 @@ sub dump_csv_files {
 
 =head1 NAME
 
- MySQLTuner 2.7.0 - MySQL High Performance Tuning Script
+ MySQLTuner 2.7.1 - MySQL High Performance Tuning Script
 
 =head1 IMPORTANT USAGE GUIDELINES