Beginning in PathTools 3.47 and/or perl 5.20.0, the File::Spec::canonpath()
routine returned untained strings even if passed tainted input. This defect
undermines the guarantee of taint propagation, which is sometimes used to
ensure that unvalidated user input does not reach sensitive code.

This defect was found and reported by David Golden of MongoDB, and a patch
was provided by Tony Cook.

References:

 * https://rt.perl.org/Public/Bug/Display.html?id=126862
 * https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8607

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

The old scheme didn't make any sense...not that there was a scheme really.

Signed-off-by: Marcel Denia <naoir@gmx.net>

This test requires a ps which provides the -f option, as well as suitable output.
We can't provide either with busybox. Just skip it for now.

Signed-off-by: Marcel Denia <naoir@gmx.net>