/usr/share/man/man3/ is in librc-dev 0.13.1-4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/man/man3/rc_plugin_hook.3.gz
/usr/share/man/man3/rc_runlevel.3.gz
/usr/share/man/man3/rc_config.3.gz
/usr/share/man/man3/rc_service.3.gz
/usr/share/man/man3/rc_stringlist.3.gz
/usr/share/man/man3/rc_deptree.3.gz
/usr/share/man/man3/rc_find_pids.3.gz
/usr/share/man/man3/rc_stringlist_sort.3.gz
/usr/share/man/man3/rc_runlevel_get.3.gz
/usr/share/man/man3/rc_service_exists.3.gz
/usr/share/man/man3/rc_service_value_set.3.gz
/usr/share/man/man3/rc_runlevel_exists.3.gz
/usr/share/man/man3/rc_runlevel_starting.3.gz
/usr/share/man/man3/rc_service_mark.3.gz
/usr/share/man/man3/rc_service_in_runlevel.3.gz
/usr/share/man/man3/rc_service_value_get.3.gz
/usr/share/man/man3/rc_config_list.3.gz
/usr/share/man/man3/rc_service_schedule_clear.3.gz
/usr/share/man/man3/rc_service_started_daemon.3.gz
/usr/share/man/man3/rc_config_load.3.gz
/usr/share/man/man3/rc_service_schedule_start.3.gz
/usr/share/man/man3/rc_stringlist_addu.3.gz
/usr/share/man/man3/rc_service_extra_commands.3.gz
/usr/share/man/man3/rc_stringlist_free.3.gz
/usr/share/man/man3/rc_service_plugable.3.gz
/usr/share/man/man3/rc_runlevel_set.3.gz
/usr/share/man/man3/rc_service_add.3.gz
/usr/share/man/man3/rc_service_delete.3.gz
/usr/share/man/man3/rc_config_value.3.gz
/usr/share/man/man3/rc_services_in_state.3.gz
/usr/share/man/man3/rc_deptree_order.3.gz
/usr/share/man/man3/rc_runlevel_list.3.gz
/usr/share/man/man3/rc_deptree_depends.3.gz
/usr/share/man/man3/rc_deptree_update.3.gz
/usr/share/man/man3/rc_service_description.3.gz
/usr/share/man/man3/rc_services_scheduled_by.3.gz
/usr/share/man/man3/rc_deptree_update_needed.3.gz
/usr/share/man/man3/rc_stringlist_delete.3.gz
/usr/share/man/man3/rc_runlevel_stopping.3.gz
/usr/share/man/man3/rc_stringlist_add.3.gz
/usr/share/man/man3/rc_yesno.3.gz
/usr/share/man/man3/rc_service_resolve.3.gz
/usr/share/man/man3/rc_service_state.3.gz
/usr/share/man/man3/rc_services_scheduled.3.gz
/usr/share/man/man3/rc_stringlist_new.3.gz
/usr/share/man/man3/rc_services_in_runlevel.3.gz
/usr/share/man/man3/rc_service_daemon_set.3.gz
/usr/share/man/man3/rc_deptree_load.3.gz
/usr/share/man/man3/rc_deptree_depend.3.gz
/usr/share/man/man3/rc_service_daemons_crashed.3.gz
/usr/share/man/man3/rc_deptree_free.3.gz