[PATCH] testsuite fix: timezone: failing due to permissions in cross testing

[Florian Weimer]

* Joseph Myers:

> On Mon, 17 Dec 2018, Vineet Gupta wrote:
>
>> timezone test driver "zic" creates testdata directory wuth umask 755, so
>> only root owner/group has write permissions. However the buildroot
>
> root should not be involved in running tests at all; all tests should run 
> as a normal user, the same one that owns the build directory, and thus all 
> files and directories in the build directory should be owned by that user.
> (Some tests use user namespaces to test functionality that requires root, 
> but that's root inside a namespace, not the real user root.)

There are also some xtests that require root privileges, such as
nptl/tst-setuid1.  Building and testing as root is supported (but
obviously not recommended unless you use a throwaway machine).

Thanks,
Florian