Identify the PHP-FPM master by parentage, not cmdline - #183
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Match the php-fpm process with no php-fpm parent rather than scanning the command line for "master process", which any invocation containing those words satisfied. A Ppid read error is now logged and the process skipped instead of the Cmdline error being silently dropped. Add findMasterProcess with a mock-process seam and unit tests; note in the Node discovery why its first-match is safe.
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Match the php-fpm process with no php-fpm parent rather than scanning the command line for "master process", which any invocation containing those words satisfied. A Ppid read error is now logged and the process skipped instead of the Cmdline error being silently dropped. Add findMasterProcess with a mock-process seam and unit tests; note in the Node discovery why its first-match is safe.