Just a cleanup release.  The open routine parsed the bytecount twice (not
a bug, just a few wasted CPU cycles), and the executable contained a symbol
table due to a typo in the makefile.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  112     138  81.2% -lh5- 4f88 Jan  9  1995 DMakefile
[generic]                  124     173  71.7% -lh5- eb25 Jan  6  1995 mountlist.zero
[generic]                 1147    1516  75.7% -lh5- 601f Jan  9  1995 zero-handler
[generic]                 1535    4232  36.3% -lh5- a6c1 Jan  9  1995 zero.c
[generic]                  821    1598  51.4% -lh5- 9f31 Jan  6  1995 zero.doc
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         5 files    3739    7657  48.8%            Jan 10  1995