[LTP] [PATCH v1] Rewrite sigrelse01.c with new APIs

[Andrea Cervesato]

Hi!

Sorry for the late reply.

Before starting a review, can we ask you why this test needs to be
refactored? It's always good to refactoring old tests, but this one in
particular is testing a feature that has been deprecated since
POSIX.1-2008 (~2016) and replaced by sigaction. We usually give low
priority to these patches in this case.

Thanks :)

-- 
Andrea Cervesato
SUSE QE Automation Engineer Linux
andrea.cervesato@suse.com