Make ninth example agree with other front ends.  Postscript results from this tcl example still have some 1 unit errors relative to python result, but fewer of these differences occur than in the comparison between python and C for the ninth example.
Make ninth example agree with other front ends.  Postscript results from
this tcl example still have some 1 unit errors relative to python result,
but fewer of these differences occur than in the comparison between python
and C for the ninth example.

svn path=/trunk/; revision=3429

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot