Decompressing user-data is broken since tiny-cloud-2.1.1-r0

Seems like latest re-org broke user-data decompression. [/var/lib/cloud]# file user-data user-data: gzip compressed data, max compression, original size modulo 2^32 17687

By any chance you missed to make the match_header() function available for save_userdata() at its new location ?