Replace cat by echo and for the case when HAVE_BASH is ON replace sed parsing of input options with bash parsing.
Replace cat by echo and for the case when HAVE_BASH is ON replace sed
parsing of input options with bash parsing.

svn path=/trunk/; revision=7226

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