By default disable anti-aliasing for the gif device. It runs into  problems when there are lots of colours in use and results are not as  good as for truecolour devices. It can still be enabled using -drvopt  smooth=1 if required. The test scripts already disable it on the  command line as example 2 runs into trouble.
By default disable anti-aliasing for the gif device. It runs into 
problems when there are lots of colours in use and results are not as 
good as for truecolour devices. It can still be enabled using -drvopt 
smooth=1 if required. The test scripts already disable it on the 
command line as example 2 runs into trouble.


svn path=/trunk/; revision=9347

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