/etc/apache2/mods-available/cgid.conf is in apache2 2.4.7-1ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | # Socket for cgid communication
ScriptSock ${APACHE_RUN_DIR}/cgisock
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet
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