fix Module::CoreList::is_core bounds checking for specific module versions

Author: karenetheridge

dist/Module-CoreList/Changes

@@ -1,8 +1,12 @@
+
+ - fixed edge-case checking in is_core() (checking for a specific version of
+   a module returned false for the first perl release that contained it)
+
 5.20160429
  - Updated for v5.22.2
 
 5.20160320
- - Updated vor v5.23.9
+ - Updated for v5.23.9
 
 5.20160228
   - [perl #127624] corelist: wrong Digest::SHA version in 5.18.4

dist/Module-CoreList/lib/Module/CoreList.pm

@@ -12478,7 +12478,7 @@ sub is_core
         }
         RELEASE:
         foreach my $prn (@releases) {
-            next RELEASE if $prn <= $first_release;
+            next RELEASE if $prn < $first_release;
             last RELEASE if $prn > $perl_version;
             next unless defined(my $next_module_version
                                    = $delta{$prn}->{changed}->{$module});

dist/Module-CoreList/t/is_core.t

@@ -1,7 +1,7 @@
 #!perl -w
 use strict;
 use Module::CoreList;
-use Test::More tests => 38;
+use Test::More tests => 43;
 
 BEGIN { require_ok('Module::CoreList'); }
 
@@ -28,6 +28,13 @@ ok(Module::CoreList::is_core('attributes', undef, '5.006001') == 1, "attributes
 ok(Module::CoreList::is_core('Pod::Plainer', undef, '5.012001') == 1, "Pod::Plainer was core in 5.12.1");
 ok(Module::CoreList::is_core('Pod::Plainer', undef, '5.016003') == 0, "Pod::Plainer was removed in 5.13.1");
 
+ok(!Module::CoreList::is_core('File::Temp', 0, '5.006'), 'File::Temp is not in 5.006000');
+ok(Module::CoreList::is_core('File::Temp', 0, '5.006001'), 'File::Temp is in 5.006001');
+ok(!Module::CoreList::is_core('File::Temp', '0.12', '5.006'), 'File::Temp 0.12 is not in 5.006000');
+ok(Module::CoreList::is_core('File::Temp', '0.12', '5.006001'), 'File::Temp 0.12 is in 5.006001');
+ok(Module::CoreList::is_core('File::Temp', '0.12', '5.006002'), 'File::Temp 0.12 is in 5.006002');
+
+
 # history of module 'encoding' in core
 #   version 1.00 included in 5.007003
 #   version 1.35 included in 5.008