In some cases, you might want to host falco packages in a way where
they're directly accessible via http. The '+' character that separates
the version and the git hash ends up breaking naive solutions that don't
properly url-escape the package name before doing the http fetch.
Of course, clients can properly url-escape, but switching to a tilde is
url safe and I think still preserves the idea of separating the version
and hash.
Signed-off-by: Mark Stemm <mark.stemm@gmail.com>