http://10.139.1.30/endpointcalibration.php messes up comments at end of line
CONFIG_PORT01_PARAMS="name=wri1,proto=raw,tx=234587,rx=216964,role=slave,fiber=00" #alfa test 20170816
becomes:
CONFIG_PORT01_PARAMS="name=wri1,proto=raw,tx=234587,rx=216964,role=slave,fiber=00#alfa test 20170816"
after changing a parameter in the web interface, this is very wrong!