avoid unnecessary uses of UNIVERSAL

Foo->Bar->can("method") works just as well, even if Foo::Bar is not
loaded. Using UNIVERSAL::can is deprecated.

But, I was unable to easily eliminate conditional.pm's use of UNIVERSAL::can

3 files changed, 1 insertions, 3 deletions

diff --git a/IkiWiki/Plugin/attachment.pm b/IkiWiki/Plugin/attachment.pm
index 5a180cd5c..133a54daf 100644
--- a/IkiWiki/Plugin/attachment.pm
+++ b/IkiWiki/Plugin/attachment.pm
@@ -148,7 +148,7 @@ sub formbuilder (@) {
 			$f=Encode::decode_utf8($f);
 			$f=~s/^$page\///;
 			if (IkiWiki::isinlinableimage($f) &&
-			    UNIVERSAL::can("IkiWiki::Plugin::img", "import")) {
+			    IkiWiki::Plugin::img->can("import")) {
 				$add.='[[!img '.$f.' align="right" size="" alt=""]]';
 			}
 			else {
diff --git a/IkiWiki/Plugin/conditional.pm b/IkiWiki/Plugin/conditional.pm
index 026078b3c..0a3d7fb4c 100644
--- a/IkiWiki/Plugin/conditional.pm
+++ b/IkiWiki/Plugin/conditional.pm
@@ -4,7 +4,6 @@ package IkiWiki::Plugin::conditional;
 use warnings;
 use strict;
 use IkiWiki 3.00;
-use UNIVERSAL;
 
 sub import {
 	hook(type => "getsetup", id => "conditional", call => \&getsetup);
diff --git a/IkiWiki/Plugin/po.pm b/IkiWiki/Plugin/po.pm
index 6410a1c66..287b5aa11 100644
--- a/IkiWiki/Plugin/po.pm
+++ b/IkiWiki/Plugin/po.pm
@@ -23,7 +23,6 @@ use File::Copy;
 use File::Spec;
 use File::Temp;
 use Memoize;
-use UNIVERSAL;
 
 my ($master_language_code, $master_language_name);
 my %translations;