resolve relative paths against PATH during packaging
resolve relative paths against PATH during packaging

Fixes #389.

glandium/sccache,luser/sccache2,luser/sccache2,mozilla/sccache,mozilla/sccache,luser/sccache2,luser/sccache2,mozilla/sccache,glandium/sccache,glandium/sccache,glandium/sccache