qTStatus response

In the description of qTStatus, the GDB manual says in part

    The reply has the form:
    `Trunning[;field]...'

In the listing of possible 'values' for 'running', tfull is omitted, but
it is one of the values that GDB scans for and recognizes.

For 'field', starttime, stoptime, username, and notes are omitted.

For username and notes, the format is

    username:hex-encoded-text
    notes:hex-encoded-text

where the hex-encoded-text is the content that was previously sent to
the remote target by a GDB.