"noreverse" is listed as option to xrange when it is no longer interpreted

[Daniel J S. <dan...@ie...>]

I notice that even though "reverse/noreverse" has been deprecated, the 
option setting "noreverse" appears in the list, i.e.:

Terminal type set to 'qt'
gnuplot> show xrange

	set xrange [ * : * ] noreverse nowriteback  # (currently 
[-10.0000:10.0000] )

Might it be better to leave out the "noreverse" value?  It would be a 
good "feature check" if the "noreverse" were no longer printed.

Of course, now that some versions have been released that do print 
"noreverse", that sort of destroys the integrity of such a feature check.

However, even this is problematic:

gnuplot> set xrange [0:1] reverse
gnuplot> show xrange

	set xrange [ 0.00000 : 1.00000 ] reverse nowriteback

gnuplot> plot x

The "show" function is indicating xrange is reversed when clearly it 
isn't.  So one can't rely on a set/show combination to determine if 
reverse/noreverse is an acceptable syntax.

Well, don't use "reverse" keyword is the lesson, but gnuplot still 
keeping track of reverse/noreverse and showing the option seems superfluous.

Dan