Mon Jun 1 17:14:19 1998 Anthony Thompson (athompso@cambridge.arm.com)

Mon Jun  1 17:14:19 1998  Anthony Thompson (athompso@cambridge.arm.com)

        * armos.c (ARMul_OSHandleSWI::SWI_Open): Handle special case
        of ":tt" to catch stdin in addition to stdout.
        (ARMul_OSHandleSWI::SWI_Seek): Return 0 or 1 to indicate failure
        or success of lseek().

From PR 15839, modified a bit by me to appease my sense of style--but
not too much because I am lazy.