[hackers] [st][patch] output child WEXITSTATUS/WTERMSIG on abnormal termination

From: Lauri Tirkkonen <lotheac_AT_iki.fi>
Date: Tue, 11 Dec 2018 11:57:31 +0200

Hi, currently st is reporting a somewhat opaque error number when its
child process terminates abnormally:

    % st sh -c 'exit 1'
    child finished with error '256'
    % st sh -c 'exit 2'
    child finished with error '512'
    % st sh -c 'kill -KILL $$'
    child finished with error '9'

with the diff below it reports properly:

    % ./st sh -c 'exit 1'
    child exited with status 1
    % ./st sh -c 'exit 2'
    child exited with status 2
    % ./st sh -c 'kill -KILL $$'
    child terminated due to signal 9
Received on Tue Dec 11 2018 - 10:57:31 CET