TDEHNS: Respect downloaded file extension.

This fixes a bug in Kopete and probably in some more places.

Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>

tdenewstuff/knewstuff.cpp

@@ -69,10 +69,14 @@ void TDENewStuff::download()
   mEngine->download();
 }
 
-TQString TDENewStuff::downloadDestination( Entry * )
+TQString TDENewStuff::downloadDestination( Entry *entry )
 {
+  // Respect downloaded file's extension
+  TQString ext = entry->payload().fileName().section('.', 1);
+  if ( ! ext.isEmpty() ) ext = "." + ext;
+
   return TDEGlobal::dirs()->saveLocation( "tmp" ) +
-         TDEApplication::randomString( 10 );
+         TDEApplication::randomString( 10 ) + ext;
 }
 
 void TDENewStuff::upload()