Add a future for the widecols.chpl cygwin output.

Cygwin thinks that the character G clef takes up more
space than it does when output, so is missing a space
in its final output.  This is a bug, so futurize the
failing case (by making a link to the original) and
skip the cygwin run of the original.
Merge pull request #778 from lydia-duncan/futurizeWideCols

Add a future for the widecols.chpl cygwin output. [reviewed by Thomas]

Cygwin thinks that the character G clef takes up more
space than it does when output, so is missing a space
in its final output. This is a bug, so futurize the
failing case (by making a link to the original) and
skip the cygwin run of the original.