The node module is being installed in /usr/lib/node_modules/nodejs-wrappy when it should be /usr/lib/node_modules/wrappy. As a result using %nodejs_symlink_deps in other packages that require it is failing.
This was discussed and resolved in BZ#1161099.
The updated version wasn't built for F21 so it doesn't work there, but does on F22 and rawhide.