Fix typo

Closes #2029

src/config.c

@@ -1424,7 +1424,7 @@ void rewriteConfigEnumOption(struct rewriteConfigState *state, char *option, int
     rewriteConfigRewriteLine(state,option,line,force);
 }
 
-/* Rewrite the syslog-fability option. */
+/* Rewrite the syslog-facility option. */
 void rewriteConfigSyslogfacilityOption(struct rewriteConfigState *state) {
     int value = server.syslog_facility, j;
     int force = value != LOG_LOCAL0;