Dear gnu-coreutils team

We had a funny problem caused by `test` which does return "0" when an option is given without any EXPRESSION 

The man page says (near line 15 or so) : 
      An  omitted  EXPRESSION defaults to false.

This is not the case when an option is given (tested for -s and -d options)

wasoi@CMV03:/home/wasoi> echo $SHELL
/bin/ksh
wasoi@CMV03:/home/wasoi> uname
Linux
wasoi@CMV03:/home/wasoi> test -s
wasoi@CMV03:/home/wasoi> echo $?
0

I expected an error (at least return code not zero) , or it would be nice to be warned in the man page.

----------
system and package information : 
	wasoi@CMV03:/home/wasoi> cat /etc/redhat\-release
	CentOS release 6.4 (Final)

List of rpm
	coreutils-libs-8.4-19.el6.x86_64
	coreutils-8.4-19.el6.x86_64
	policycoreutils-2.0.83-19.30.el6.x86_64

-------------
reference : On *AIX* 6.1 , with IBM's test , there is an error 

wasoi@cms054:/i/w/l/w00/was> echo $SHELL
/bin/ksh
wasoi@cms054:/i/w/l/w00/was> uname
AIX
wasoi@cms054:/i/w/l/w00/was> test -s
ksh: test: argument expected
wasoi@cms054:/i/w/l/w00/was> echo $?
1

This was the expected behavior :-)  

The *AIX* man page gives 
Exit Status

       This command returns the following exit values:
       Item
            Description
       0
            The Expression parameter is true.
       1
            The Expression parameter is false or missing.
       >1
            An error occurred.

-------------

Best regards , and thanks a lot for your work.

Alain BAECKEROOT (cnav.fr)