WHY DOES THIS FAIL?
### --env _
OK from fubar test
In csh this may fail with ignored_var: Undefined variable.
### --env _ with explicit mentioning of normally ignored var $ignored_var
OK from fubar should be copied test
OK from fubar should be copied test
par_hostgroup	### --hostgroup force ncpu - 2x parallel, 6x me
par_hostgroup	parallel
par_hostgroup	parallel
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	### --hostgroup two group arg - 2x parallel, 6x me
par_hostgroup	parallel
par_hostgroup	parallel
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	### --hostgroup one group arg - 8x me
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	### --hostgroup multiple group arg + unused group - 2x parallel, 6x me, 0x tcsh
par_hostgroup	parallel
par_hostgroup	tange
par_hostgroup	### --hostgroup two groups @
par_hostgroup	parallel	parallel
par_hostgroup	parallel	parallel
par_hostgroup	tange	tange
par_hostgroup	tange	tange
par_hostgroup	### --hostgroup
par_hostgroup	no_group
par_hostgroup	explicit_group
par_hostgroup	implicit_group
par_hostgroup	### --hostgroup --sshlogin with @
par_hostgroup	no_group
par_hostgroup	implicit_group
par_hostgroup	### --hostgroup -S @group - bad if you get parallel@lo
par_hostgroup	tange
par_hostgroup	tcsh
par_hostgroup	### --hostgroup -S @group1 -Sgrp2 - get all twice
par_hostgroup	parallel
par_hostgroup	parallel
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tcsh
par_hostgroup	tcsh
par_hostgroup	### --hostgroup -S @group1+grp2 - get all twice
par_hostgroup	parallel
par_hostgroup	parallel
par_hostgroup	tange
par_hostgroup	tange
par_hostgroup	tcsh
par_hostgroup	tcsh