With DECC$UNIX_PATH_BEFORE_LOGNAME enabled, when translating
    a UNIX filename not starting with a leading slash (/), an
    attempt is made to match this to a file or directory in the
    current directory. If this is not found and the name is valid
    as a logical name in an OpenVMS filename, an attempt is made to
    translate the logical name and, if found, is used as part of the
    resulting filename.

    Enabling DECC$UNIX_PATH_BEFORE_LOGNAME overrides the setting for
    DECC$DISABLE_TO_VMS_LOGNAME_TRANSLATION.