Fix Perl module Module::Pluggable such that it can find plugins that live in
symlinked directories.

Patch borrowed/adapted from Nixpkgs.

--- Module-Pluggable-5.2/lib/Module/Pluggable/Object.pm   2015-04-08 23:28:48.120164135 -0500
+++ Module-Pluggable-5.2/lib/Module/Pluggable/Object.pm   2015-04-08 23:30:27.032166704 -0500
@@ -164,7 +164,7 @@
         my $sp = catdir($dir, (split /::/, $searchpath));

         # if it doesn't exist or it's not a dir then skip it
-        next unless ( -e $sp && -d _ ); # Use the cached stat the second time
+        next unless ( -e $sp );

         my @files = $self->find_files($sp);

@@ -279,7 +279,7 @@
                              (my $path = $File::Find::name) =~ s#^\\./##;
                              push @files, $path;
                            }
-                      }, $search_path );
+                      }, "$search_path/." );
     }
     #chdir $cwd;
     return @files;zed Guix</td><td class='sub right'></td></tr></table>
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<tr><td><span title='2018-06-26 02:17:03 +0200'>2018-06-26</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=2f6a93472264a38280335454b3f81f36bdda5479'>gnu: glog: Return #t from all phases.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-03-09 23:24:34 +0100'>2018-03-09</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=464f5447396fcec9b43f7eab71d5d42b522a157f'>gnu: 'autoconf-wrapper' is no longer a procedure.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-01-05 14:50:23 +0100'>2018-01-05</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=bc6ca5237a6fed32462c1404f215a3589a84eb54'>gnu: log4cpp: Update to 1.1.3.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-01-04 15:34:47 -0600'>2018-01-04</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=17e1e21603e7cba622cf4ec41c0e1467972fd449'>gnu: glog: Disable signal-handler unit tests.</a><span class='msg-avail'>...</span></td><td>Eric Bavier</td></tr>
<tr><td><span title='2017-11-13 23:41:01 +0100'>2017-11-13</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=1b2f753d9c73a5431ec1f5510449c480debf80ce'>gnu: Move web packages from python to python-web.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-09-04 00:10:59 -0400'>2017-09-04</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=d10092b849153dc27cfed0a9601fde6c7bdec918'>gnu: Put autoconf-related phases immediately after the 'unpack phase.</a><span class='msg-avail'>...</span></td><td>Kei Kebreau</td></tr>
<tr><td><span title='2017-08-09 23:50:23 +0100'>2017-08-09</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=761f5865c8fe1a6cda5d1481782ecf3f8fff4602'>gnu: Update tailon to version 1.3.0.</a><span class='msg-avail'>...</span></td><td>Christopher Baines</td></tr>
<tr><td><span title='2017-05-26 00:05:20 +0200'>2017-05-26</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=37a57196422ed35930a978b4edc85087e49a90d0'>gnu: Add multitail.</a><span class='msg-avail'>...</span></td><td>Stefan Reichoer</td></tr>
<tr><td><span title='2017-05-24 17:45:18 +0200'>2017-05-24</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=3c74a74ea2814bca25257f8211b8084a3cc1a3b9'>gnu: glog: Update to 0.3.5.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-05-17 16:50:41 +0200'>2017-05-17</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=872a6fd98868d345443f04efdfd974d148c57f9d'>gnu: tailon: Use absolute paths for commands.</a><span class='msg-avail'>...</span></td><td>Christopher Baines</td></tr>
<tr><td><span title='2017-05-01 23:59:29 +0200'>2017-05-01</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=99aa2dce5d376b6612aab0971985f6320c03ecd2'>gnu: Add tailon.</a><span class='msg-avail'>...</span></td><td>Christopher Baines</td></tr>
<tr><td><span title='2017-04-04 14:30:00 +0200'>2017-04-04</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=b7506f74dffd86b93a07ef2c6dfc6517897afea6'>gnu: glog: Fix name demangling for GCC 5.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2016-06-29 11:13:03 +0200'>2016-06-29</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=53d159f8434360d4ff2e379676c2098553b96bf7'>gnu: Add glog.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2016-06-15 15:35:02 +0200'>2016-06-15</span></td><td><a href='/guix/commit/gnu/packages/logging.scm?id=ce9cf64b787aeb063823f0e9056db5b644ef5f75'>gnu: Add log4cpp.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>