bugreportz is used to generate a zippped bugreport whose path is passed back to
adb, using the simple protocol defined below.
On version 1.0,
bugreportz does not generate any output on
stdout until the bugreport is finished, when it then prints one line with the result:
OK:<path_to_bugreport_file> in case of success.
FAIL:<error message> in case of failure.