Avoiding:
The following keyword changes are necessary to proceed:
(see "package.accept_keywords" in the portage(5) man page for more details)
# required by app-admin/salt-9999
# required by =app-admin/salt-9999 (argument)
=dev-python/libcloud-0.14.1 ~amd64
# required by app-admin/salt-0.17.4-r2
# required by app-admin/salt (argument)
RUN echo '=dev-python/msgpack-0.4.0 ~amd64' >> /etc/portage/package.accept_keywords/salt
+# required by app-admin/salt-9999
+# required by =app-admin/salt-9999 (argument)
+Run echo '=dev-python/libcloud-0.14.1 ~amd64' >> /etc/portage/package.accept_keywords/salt
# required by dev-python/git-python-0.3.2_rc1-r1
# required by dev-python/git-python (argument)
RUN echo '=dev-python/gitdb-0.5.4-r1 ~amd64' >> /etc/portage/package.accept_keywords/salt