Description:
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When running php-fpm with --nodaemonize, error_log is not respected. Instead, messages appear on the console (assuming STDOUT).

This is an issue since distro started to use upstartd and launch php-fpm this way:

exec /usr/sbin/php5-fpm --nodaemonize --fpm-config /etc/php5/fpm/php-fpm.conf 

which means the output doesn't get written into what is defined in the configuration. Instead it ends up being caught by upstartd and dumped into something like:

/var/log/upstart/php5-fpm.log



Test script:
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$ /usr/sbin/php5-fpm --daemonize

... error_log directive is respected, all error / warning / notice / debug go into log file.

$ /usr/sbin/php5-fpm --nodaemonize

... error_log is not respected. Debug and notice get out on STDOUT / STDERR.



Expected result:
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It would be better if the error_log directive was always respected or if there was a command line option to use to force logging to file instead of STDOUT when the --nodaemonize option is used.


$ /usr/sbin/php5-fpm --nodaemonize --force-log

or something the like, or simply duplicate to error_log and STDOUT.