Support syntax_ok from Test::Script

Currently, in 0.24, syntax_ok only loads modules with '::' in the name
while Tangerine reports modules even without it.  This is a Test::Strict
issue and I expect it will be fixed in the near future.

Test::Strict bug report:
https://rt.cpan.org/Ticket/Display.html?id=99505

Signed-off-by: Petr Šabata <contyk@redhat.com>