rstacruz/sinatra-assetpack — pull request #73 by d-tw (2013-01-20 11:51:58+00:00)
Title: "Argument out of range" error on rake assetpack:build

These changes fix the "argument out of range" error that occurs when
attempting to precompile the assets using the assetpack:build rake task.

The "Last-Modified" header value was being returned as a UNIX timestamp
which was breaking the Time.parse call used when saving the files.