Patch thanks to Patrick Lee.
- apply patch (applied upstream) to assume rlwrap is present - update expression to depend on rlwrap - rebase the nix-specific patch to apply cleanly svn path=/nixpkgs/trunk/; revision=34056
call to patchShebangs to fix the reference to /bin/bash). svn path=/nixpkgs/trunk/; revision=32698
svn path=/nixpkgs/trunk/; revision=31716