logback-android/src/main/java/ch/qos/logback/core/net/SyslogAppenderBase.java
public void setFacility(String facilityStr) {
    if (facilityStr != null) {
      facilityStr = facilityStr.trim();
    }
    this.facilityStr = facilityStr;
  }
public void setFacility(String facilityStr) {
    if (facilityStr != null) {
      facilityStr = facilityStr.trim();
    }
    this.facilityStr = facilityStr;
  }
public void setFacility ( String facilityStr ) { if ( facilityStr != null ) { facilityStr = facilityStr . trim ( ) ; } this . facilityStr = facilityStr ; }
The <b>Facility</b> option must be set one of the strings KERN, USER, MAIL,
DAEMON, AUTH, SYSLOG, LPR, NEWS, UUCP, CRON, AUTHPRIV, FTP, NTP, AUDIT,
ALERT, CLOCK, LOCAL0, LOCAL1, LOCAL2, LOCAL3, LOCAL4, LOCAL5, LOCAL6,
LOCAL7. Case is not important.

<p>
See {@link SyslogConstants} and RFC 3164 for more information about the
<b>Facility</b> option.
@param facilityStr the name of the desired facility
The <b > Facility< / b > option must be set one of the strings KERN USER MAIL DAEMON AUTH SYSLOG LPR NEWS UUCP CRON AUTHPRIV FTP NTP AUDIT ALERT CLOCK LOCAL0 LOCAL1 LOCAL2 LOCAL3 LOCAL4 LOCAL5 LOCAL6 LOCAL7 . Case is not important .