Fix RHEL gating tests

These would always fail because libvirt doesn't start up after being
installed.  You would see errors like:

  libguestfs: opening libvirt handle: URI = qemu:///system, auth = default+wrapper, flags = 0
  libvirt: XML-RPC error : Failed to connect socket to '/var/run/libvirt/virtqemud-sock': No such file or directory
  libguestfs: error: could not connect to libvirt (URI = qemu:///system): Failed to connect socket to '/var/run/libvirt/virtqemud-sock': No such file or directory [code=38 int1=2]

(cherry picked from
Fedora commit a1eed9c04c9e64cf24bc83a0da2cd6b05f7400c3)

tests/run-libguestfs-test-tool.sh

@@ -0,0 +1,10 @@
+#!/bin/bash -
+set -e
+set -x
+
+# This only makes sure that libguestfs isn't totally broken.
+
+# Fix libvirt.
+systemctl restart virtqemud virtsecretd virtstoraged virtnetworkd
+
+libguestfs-test-tool

tests/tests.yml

@@ -5,9 +5,10 @@
   - role: standard-test-basic
     tags:
     - classic
+    required_packages:
+    - libguestfs
+    - libvirt-daemon-kvm
     tests:
     - libguestfs-test-tool:
         dir: .
-        run: libguestfs-test-tool
+        run: ./run-libguestfs-test-tool.sh
-    required_packages:
-    - libguestfs