Add support for --syntax to BaseCmdPkgRelations.pkg_relations(), and
default to 'semver', i.e. the current state of affairs. If that's
changed to 'debian', relations declared in project.conf as
pkg.requires.os.devel = jw-pkg-devel > 1.2.3
will be output as
jw-pkg-devel >> 1.2.3
which is what Debian expects.
Signed-off-by: Jan Lindemann <jan@janware.com>
Jan Lindemann
7046983d7c