debug/ltrace: set the ltrace extension to .tar.gz

Trying to download every extension in turn does not work.
The Debian server returns a friendly 404-page that is
saved as the orig.tar.bz2 file. Help the helper by giving
it the extension to retrieve.

#!/bin/sh

# Needed for systems without gettext

$* -xc -o /dev/null - > /dev/null 2>&1 << EOF

#include <libintl.h>

int main()

{

	gettext("");

	return 0;

}

EOF

if [ ! "$?" -eq "0"  ]; then

	echo -DKBUILD_NO_NLS;

fi