Install dom0 qvm-* tools man pages by default

rpm_spec/core-dom0.spec

@@ -53,6 +53,7 @@ Requires(preun): systemd-units
 Requires(postun): systemd-units
 Requires:	python, pciutils, python-inotify, python-daemon
 Requires:       qubes-core-dom0-linux >= 3.1.8
+Requires:       qubes-core-dom0-doc
 Requires:       qubes-db-dom0
 Requires:       python-lxml
 Requires:       python-psutil