4.4BSD snapshot (revision 8.1); add 1993 to copyright

4.4BSD snapshot (revision 8.1); add 1993 to copyright

SCCS-vsn: bin/sh/bltin/bltin.h 8.1
SCCS-vsn: bin/sh/bltin/echo.1 8.1
SCCS-vsn: bin/sh/bltin/echo.c 8.1
SCCS-vsn: bin/sh/funcs/cmv 8.1
SCCS-vsn: bin/sh/funcs/dirs 8.1
SCCS-vsn: bin/sh/funcs/kill 8.1
SCCS-vsn: bin/sh/funcs/login 8.1
SCCS-vsn: bin/sh/funcs/newgrp 8.1
SCCS-vsn: bin/sh/funcs/popd 8.1
SCCS-vsn: bin/sh/funcs/pushd 8.1
SCCS-vsn: bin/sh/funcs/suspend 8.1
SCCS-vsn: bin/sh/cd.c 8.1
SCCS-vsn: bin/sh/error.c 8.1
SCCS-vsn: bin/sh/error.h 8.1
SCCS-vsn: bin/sh/eval.c 8.1
SCCS-vsn: bin/sh/eval.h 8.1
SCCS-vsn: bin/sh/exec.c 8.1
SCCS-vsn: bin/sh/exec.h 8.1
SCCS-vsn: bin/sh/expand.c 8.1
SCCS-vsn: bin/sh/expand.h 8.1
SCCS-vsn: bin/sh/init.h 8.1
SCCS-vsn: bin/sh/input.c 8.1
SCCS-vsn: bin/sh/input.h 8.1
SCCS-vsn: bin/sh/jobs.c 8.1
SCCS-vsn: bin/sh/jobs.h 8.1
SCCS-vsn: bin/sh/machdep.h 8.1
SCCS-vsn: bin/sh/mail.c 8.1
SCCS-vsn: bin/sh/mail.h 8.1
SCCS-vsn: bin/sh/main.c 8.1
SCCS-vsn: bin/sh/main.h 8.1
SCCS-vsn: bin/sh/memalloc.c 8.1
SCCS-vsn: bin/sh/memalloc.h 8.1
SCCS-vsn: bin/sh/miscbltin.c 8.1
SCCS-vsn: bin/sh/mkinit.c 8.1
SCCS-vsn: bin/sh/mknodes.c 8.1
SCCS-vsn: bin/sh/mksyntax.c 8.1
SCCS-vsn: bin/sh/mystring.c 8.1
SCCS-vsn: bin/sh/mystring.h 8.1
SCCS-vsn: bin/sh/options.c 8.1
SCCS-vsn: bin/sh/options.h 8.1
SCCS-vsn: bin/sh/output.c 8.1
SCCS-vsn: bin/sh/output.h 8.1
SCCS-vsn: bin/sh/parser.c 8.1
SCCS-vsn: bin/sh/parser.h 8.1
SCCS-vsn: bin/sh/redir.c 8.1
SCCS-vsn: bin/sh/redir.h 8.1
SCCS-vsn: bin/sh/sh.1 8.1
SCCS-vsn: bin/sh/shell.h 8.1
SCCS-vsn: bin/sh/show.c 8.1
SCCS-vsn: bin/sh/trap.c 8.1
SCCS-vsn: bin/sh/trap.h 8.1
SCCS-vsn: bin/sh/var.c 8.1
SCCS-vsn: bin/sh/var.h 8.1