This commit adds a makepkg option to generate and print the SRCINFO file
for a PKGBUILD, required by the new AUR, to stdout.
AUR 4.0 will use Git instead of source tarballs for uploading packages,
so making makepkg capable of printing the SRCINFO would simplify package
management, instead of having to extract it from a source tarball.
It is also useful for scripting other things, so that instead of having
to parse PKGBUILDs, one can make makepkg generate the SRCINFO and then
you can parse that instead, which is much simpler and less error-prone.
Signed-off-by: Allan McRae <allan@archlinux.org>
aa9aa343cb