earlyoom for 66

[linuxergr]

Proper operation of the service script has been confirmed as below, so it must be ready to merge:

• [root@voidlinux linuxer]# 66-inservice earlyoom Name : earlyoom Version : 0.0.1 In tree : default Status : enabled, up (pid 31075) 1234 seconds Type : classic Description : earlyoom daemon Source : /etc/66/service/earlyoom Live : /run/66/scandir/0/earlyoom Dependencies : earlyoom-log External dependencies : None Optional dependencies : None Start script : earlyoom Stop script : None Environment source : None Environment file : None Log name : earlyoom-log Log destination : /var/log/66/earlyoom Log file : 2021-09-27 10:59:42.606890641 mem avail: 75 of 5740 MiB ( 1.32%), swap free: 2119 of 7157 MiB (29.62%)......