fix typo in omfile failOnChOwnFailure description
fix typo in omfile failOnChOwnFailure description

qha/rsyslog-doc,janmejay/rsyslog-doc,sematext/rsyslog-doc,qha/rsyslog-doc,sematext/rsyslog-doc,sematext/rsyslog-doc,janmejay/rsyslog-doc,sematext/rsyslog-doc,janmejay/rsyslog-doc,qha/rsyslog-doc,janmejay/rsyslog-doc,qha/rsyslog-doc