sstephenson/sprockets — pull request #321 by mat813 (2012-04-25 10:59:39+00:00)
Title: Prevent gzip files from being gratuitously different.

By default, mtime is `0` and in that case, `Zlib` will set it to `Time.now`, and each time the same uncompressed file is compressed, the output will be different. So I chose another integer, `1` seemed nice, but any would do, it just needs to be the same every time.