xbrlapi -V (return code: 4)
openConnection: connect: No such file or directory
cannot connect to brltty at :0
xbrlapi --help (return code: 0)
Usage: xbrlapi [option ...]
-b [host][:port] --brlapi= BrlAPI host and/or port to connect to
-a file --auth= BrlAPI authorization/authentication string
-d display --display= X display to connect to
-q --quiet Do not write any text to the braille device
-h --help Print a usage summary (commonly used options
only), and then exit.
-H --full-help Print a usage summary (all options), and then
exit.