use parent not base

modules/Bio/EnsEMBL/IO/ColumnBasedParser.pm

@@ -33,7 +33,7 @@ use Carp;
 
 use Bio::EnsEMBL::IO::Object::ColumnBasedGeneric;
 
-use base qw/Bio::EnsEMBL::IO::TextParser/;
+use parent qw/Bio::EnsEMBL::IO::TextParser/;
 
 our %sub_strings = (
     '\n' => "\n",

modules/Bio/EnsEMBL/IO/ListBasedParser.pm

@@ -28,7 +28,7 @@ package Bio::EnsEMBL::IO::ListBasedParser;
 use strict;
 use warnings;
 
-use base qw/Bio::EnsEMBL::IO::TextParser/;
+use parent qw/Bio::EnsEMBL::IO::TextParser/;
 
 =head2 open
 

modules/Bio/EnsEMBL/IO/Object/GFF3.pm

@@ -39,7 +39,7 @@ rather than GFF3 as the generic object does.
 
 package Bio::EnsEMBL::IO::Object::GFF3;
 
-use base qw/Bio::EnsEMBL::IO::Object::ColumnBasedGeneric/;
+use parent qw/Bio::EnsEMBL::IO::Object::ColumnBasedGeneric/;
 
 use strict;
 use warnings;

modules/Bio/EnsEMBL/IO/Object/GTF.pm

@@ -39,7 +39,7 @@ rather than GFF3 as the generic object does.
 
 package Bio::EnsEMBL::IO::Object::GTF;
 
-use base qw/Bio::EnsEMBL::IO::Object::ColumnBasedGeneric/;
+use parent qw/Bio::EnsEMBL::IO::Object::ColumnBasedGeneric/;
 
 use strict;
 use warnings;

modules/Bio/EnsEMBL/IO/Object/GXFMetadata.pm

@@ -42,7 +42,7 @@ elements via setters/getters. Setter/getters are dynamically added to the class
 
 package Bio::EnsEMBL::IO::Object::GXFMetadata;
 
-use base qw/Bio::EnsEMBL::IO::Object::Metadata/;
+use parent qw/Bio::EnsEMBL::IO::Object::Metadata/;
 
 use strict;
 use warnings;

modules/Bio/EnsEMBL/IO/Object/VCF4.pm

@@ -36,7 +36,7 @@ format the record as VCF4.
 
 package Bio::EnsEMBL::IO::Object::VCF4;
 
-use base qw/Bio::EnsEMBL::IO::Object::ColumnBasedGeneric/;
+use parent qw/Bio::EnsEMBL::IO::Object::ColumnBasedGeneric/;
 
 use strict;
 use warnings;

modules/Bio/EnsEMBL/IO/Object/VCF4Metadata.pm

@@ -42,7 +42,7 @@ elements via setters/getters. Setter/getters are dynamically added to the class
 
 package Bio::EnsEMBL::IO::Object::VCF4Metadata;
 
-use base qw/Bio::EnsEMBL::IO::Object::Metadata/;
+use parent qw/Bio::EnsEMBL::IO::Object::Metadata/;
 
 use strict;
 use warnings;

modules/Bio/EnsEMBL/IO/Parser/BLASTFormatter.pm

@@ -109,7 +109,7 @@ use strict;
 use warnings;
 use Carp;
 
-use base qw/Bio::EnsEMBL::IO::ColumnBasedParser/;
+use parent qw/Bio::EnsEMBL::IO::ColumnBasedParser/;
 our ($AUTOLOAD);
 
 =head2 open

modules/Bio/EnsEMBL/IO/Parser/BaseVCF4.pm

@@ -42,7 +42,7 @@ use Storable qw(freeze thaw);
 
 use Bio::EnsEMBL::IO::Format::VCF4;
 
-use base qw/Bio::EnsEMBL::IO::ColumnBasedParser/;
+use parent qw/Bio::EnsEMBL::IO::ColumnBasedParser/;
 
 my $version = 4.2;
 

modules/Bio/EnsEMBL/IO/Parser/Bed.pm

@@ -35,7 +35,7 @@ use Bio::EnsEMBL::IO::Format::Bed;
 use Bio::EnsEMBL::IO::Format::BedDetail;
 use Bio::EnsEMBL::IO::Format::BedGraph;
 
-use base qw/Bio::EnsEMBL::IO::TrackBasedParser/;
+use parent qw/Bio::EnsEMBL::IO::TrackBasedParser/;
 
 =head2 add_format
 

modules/Bio/EnsEMBL/IO/Parser/BedTabix.pm

@@ -41,7 +41,7 @@ use Bio::EnsEMBL::IO::TabixParser;
 use Bio::EnsEMBL::IO::Parser::Bed;
 use Bio::DB::HTS::Tabix;
 
-use base qw/Bio::EnsEMBL::IO::TabixParser Bio::EnsEMBL::IO::Parser::Bed/;
+use parent qw/Bio::EnsEMBL::IO::TabixParser Bio::EnsEMBL::IO::Parser::Bed/;
 
 sub open {
   my ($caller, $filename, @other_args) = @_;

modules/Bio/EnsEMBL/IO/Parser/CADDTabix.pm

@@ -39,7 +39,7 @@ use warnings;
 use Bio::EnsEMBL::IO::TabixParser;
 use Bio::DB::HTS::Tabix;
 
-use base qw/Bio::EnsEMBL::IO::TabixParser Bio::EnsEMBL::IO::ColumnBasedParser/;
+use parent qw/Bio::EnsEMBL::IO::TabixParser Bio::EnsEMBL::IO::ColumnBasedParser/;
 
 sub open {
   my ($caller, $filename, @other_args) = @_;

modules/Bio/EnsEMBL/IO/Parser/Coords.pm

@@ -31,7 +31,7 @@ use strict;
 use warnings;
 no warnings 'uninitialized';
 
-use base qw/Bio::EnsEMBL::IO::ListBasedParser/;
+use parent qw/Bio::EnsEMBL::IO::ListBasedParser/;
 
 
 =head2 get_coords

modules/Bio/EnsEMBL/IO/Parser/EMBL.pm

@@ -26,7 +26,7 @@ package Bio::EnsEMBL::IO::Parser::EMBL;
 use strict;
 use warnings;
 
-use base qw/Bio::EnsEMBL::IO::TokenBasedParser/;
+use parent qw/Bio::EnsEMBL::IO::TokenBasedParser/;
 
 =head2 open
 

modules/Bio/EnsEMBL/IO/Parser/EMF.pm

@@ -33,7 +33,7 @@ package Bio::EnsEMBL::IO::Parser::EMF;
 use strict;
 use warnings;
 
-use base qw/Bio::EnsEMBL::IO::TokenBasedParser/;
+use parent qw/Bio::EnsEMBL::IO::TokenBasedParser/;
 
 
 =head2 open

modules/Bio/EnsEMBL/IO/Parser/Fasta.pm

@@ -33,7 +33,7 @@ package Bio::EnsEMBL::IO::Parser::Fasta;
 use strict;
 use warnings;
 
-use base qw/Bio::EnsEMBL::IO::TokenBasedParser/;
+use parent qw/Bio::EnsEMBL::IO::TokenBasedParser/;
 use Bio::EnsEMBL::IO::Object::Fasta;
 
 =head2 open

modules/Bio/EnsEMBL/IO/Parser/GFF3.pm

@@ -31,7 +31,7 @@ use warnings;
 
 use Bio::EnsEMBL::IO::Parser::Fasta;
 
-use base qw/Bio::EnsEMBL::IO::Parser::GXF/;
+use parent qw/Bio::EnsEMBL::IO::Parser::GXF/;
 
 sub open {
     my ($caller, $filename, @other_args) = @_;

modules/Bio/EnsEMBL/IO/Parser/GFF3Tabix.pm

@@ -41,7 +41,7 @@ use Bio::EnsEMBL::IO::TabixParser;
 use Bio::EnsEMBL::IO::Parser::GFF3;
 use Bio::DB::HTS::Tabix;
 
-use base qw/Bio::EnsEMBL::IO::TabixParser Bio::EnsEMBL::IO::Parser::GFF3/;
+use parent qw/Bio::EnsEMBL::IO::TabixParser Bio::EnsEMBL::IO::Parser::GFF3/;
 
 sub open {
   my ($caller, $filename, @other_args) = @_;

modules/Bio/EnsEMBL/IO/Parser/GTF.pm

@@ -27,7 +27,7 @@ package Bio::EnsEMBL::IO::Parser::GTF;
 use strict;
 use warnings;
 
-use base qw/Bio::EnsEMBL::IO::Parser::GXF/;
+use parent qw/Bio::EnsEMBL::IO::Parser::GXF/;
 
 use Bio::EnsEMBL::IO::Object::GTF;
 

modules/Bio/EnsEMBL/IO/Parser/GTFTabix.pm

@@ -41,7 +41,7 @@ use Bio::EnsEMBL::IO::TabixParser;
 use Bio::EnsEMBL::IO::Parser::GTF;
 use Bio::DB::HTS::Tabix;
 
-use base qw/Bio::EnsEMBL::IO::TabixParser Bio::EnsEMBL::IO::Parser::GTF/;
+use parent qw/Bio::EnsEMBL::IO::TabixParser Bio::EnsEMBL::IO::Parser::GTF/;
 
 sub open {
   my ($caller, $filename, @other_args) = @_;