* Skip rewriting files that are links (this also avoids issues with parsing
the output of the 'file' command for symlinks)
* Fail rather than warn for several gpg signing issues (e.g. if there is no
key available to sign with)
* Installation with 'buildcache install' only retrieves link and run
dependencies (this matches 'buildcache create' which only creates tarballs
of link/run dependencies)
* Don't rewrite RPATHs for a binary if the binary cached package was created
with relative RPATHs
* Refactor relocate_binary to operate on multiple binaries (given as a
collection of paths). This was likewise done for relocate_text and
make_binary_relative
1484a94b1e