Jan Nieuwenhuizen
392a4e1223
guix hash: Add --exclude-vcs option.
* guix/scripts/hash.scm (show-help): Add help text for --exclude-vcs option.
(%options): Add --exclude-vcs option.
(guix-hash): Handle exclude-vcs option.
* doc/guix.texi ("Invoking guix hash"): Update doc.
* tests/guix-hash.sh: Add test.
Co-authored-by: Ludovic Courtès <ludo@gnu.org>