File improve-fetchdoc.patch of Package whohas

#! /bin/sh /usr/share/dpatch/dpatch-run
## 40-improve-fetchdoc.dpatch by Jonathan Wiltshire <debian@jwiltshire.org.uk>
##
## All lines beginning with `## DP:' are a description of the patch.
## DP: Shift some of the burden in sub fetchdoc onto the LWP::UserAgent class
## DP: This also allows us to process XML files without breaking the first line

@DPATCH@
--- a/whohas
+++ b/whohas
@@ -1146,33 +1146,16 @@ sub fetchdoc {
 
 	my $ua = LWP::UserAgent->new;
 	$ua->env_proxy;
-        my @firstline;
-        my @response;
-        for (my $count = 0; ; ++$count) {   # termination condition inside loop
-                my $req = HTTP::Request->new(GET => $url);
-                my $res = $ua->request($req)->as_string;
-                @response = split (/\n/, $res);
-                @firstline = split (/ /, $response[0]);
-		my $restest = 0;
-		if (@firstline == 3) {
-			$restest = $firstline[1];
-		} elsif (@firstline > 3) {
-			$restest = $firstline[0];
-		}
-		if ($restest == 200 || $response[0] =~ /200 OK/) { #NB the matching expression added specifically for NetBSD package page!
-		# server response 200 is a stringent criterion, but should work
-			last;
-		} elsif ($count > 4) {   # loop termination condition
-			unless ($silent == 1) {
-				warn ("Tried fetching \"$url\" five times. Giving up.\n");
-			}
-			return ();
-			last;
+	my $response = $ua->get($url);
+	if($response->is_success) {
+		return $response->decoded_content;
+	} else {
+		unless ($silent == 1)
+		{
+			print("Couldn't fetch \"$url\". Giving up.\n");
 		}
+		return();
 	}
-    my $end = @response - 1;
-    my $finaldoc = join ("\n", @response[14..$end]);
-    return ($finaldoc);
 }
 
 sub pretty_print {