satisfy the critics

t/error-http_download-param-validation.t

@@ -1,21 +1,22 @@
 use strict;
+use warnings;
 use Test::More;
 use Test::Exception;
-use File::Temp 'tempdir';
+use File::Temp qw(tempdir);
 use IO::All;
-
-use App::Perlbrew::HTTP qw(http_user_agent_program http_get http_download);
+use App::Perlbrew::HTTP qw(http_download);
 
 subtest "http_download: dies when when the download target already exists" => sub {
-    my $dir = tempdir( CLEANUP => 1 );
+    my $dir    = tempdir( CLEANUP => 1 );
     my $output = "$dir/whatever";
 
     io($output)->print("so");
 
     my $error;
     throws_ok {
-        $error = http_download("https://install.perlbrew.pl", $output);
-    } qr(^ERROR: The download target < \Q$output\E > already exists\.$);
+        $error = http_download( "https://install.perlbrew.pl", $output );
+    }
+    qr(^ERROR: The download target < \Q$output\E > already exists\.$);
 };
 
 done_testing;