use "diff" filetype for .debian.tar.* files (Closes: #554898) in

apt-pkg/deb/debsrcrecords.cc as source format v3 uses this name
scheme for their "diff" files.

apt-pkg/deb/debsrcrecords.cc

@@ -135,9 +135,15 @@ bool debSrcRecordParser::Files(vector<pkgSrcRecords::File> &List)
 	 string::size_type Tmp = F.Path.rfind('.',Pos);
 	 if (Tmp == string::npos)
 	    break;
+	 if (F.Type == "tar") {
+	    // source v3 has extension 'debian.tar.*' instead of 'diff.*'
+	    if (string(F.Path, Tmp+1, Pos-Tmp) == "debian")
+	       F.Type = "diff";
+	    break;
+	 }
 	 F.Type = string(F.Path,Tmp+1,Pos-Tmp);
 	 
-	 if (F.Type == "gz" || F.Type == "bz2" || F.Type == "lzma")
+	 if (F.Type == "gz" || F.Type == "bz2" || F.Type == "lzma" || F.Type == "tar")
 	 {
 	    Pos = Tmp-1;
 	    continue;

debian/changelog

@@ -78,6 +78,8 @@ apt (0.7.25) UNRELEASED; urgency=low
     - add https options which default to http ones (Closes: #557085)
   * ftparchive/writer.{cc,h}:
     - add APT::FTPArchive::LongDescription to be able to disable them
+  * apt-pkg/deb/debsrcrecords.cc:
+    - use "diff" filetype for .debian.tar.* files (Closes: #554898)
 
   [ Chris Leick ]
   * doc/ various manpages: