#251 for contrib task does not handle $$ in filenames correctly

[Sebastien Hadjifotis]

  <ac:for list="${findlist}" delimiter="${line.separator}" param="ccelement">
  <sequential>
     <echo>ccelement = &quot;@{ccelement}&quot;</echo>
  </sequential>
  </ac:for>

findlist property has a file
myfile$$moretext.txt in it
however when the ccelement property is set to it the name is now
myfile$moretext.txt

The double $ has been converted to a single $