Add minimum dependency on base.pm v2.18

This fixes a bug in some cases when using `SUPER::new()` such as: ``` t/SearchIO/Tiling.t ................. Error: Can't locate object method "new" via package "Bio::Search::HSP::GenericHSP::SUPER" ``` Fixes <#307>. Connects with <#378>.
bioperl · May 10, 2023 · b5db880 · b5db880
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commit b5db880
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diff --git a/Changes b/Changes
@@ -2,6 +2,8 @@ Summary of important user-visible changes for BioPerl
 -----------------------------------------------------
 
 {{$NEXT}}
+    * Add minimum dependency on base.pm v2.18. Fixes bug in some cases when
+      using SUPER::new() [#307].
 
 1.7.8     2021-02-02 23:02:18-06:00 America/Chicago
     * Bio::SeqIO::interpro has been moved to a separate repository to

diff --git a/lib/Bio/Root/Root.pm b/lib/Bio/Root/Root.pm
@@ -3,7 +3,7 @@ package Bio::Root::Root;
 use strict;
 use Bio::Root::IO;
 use Scalar::Util qw(blessed reftype);
-use base qw(Bio::Root::RootI);
+use base 2.18 qw(Bio::Root::RootI);
 
 =head1 NAME