Fix typo: runnning -> running

One n too many for running, need we say more.

Signed-Off-By: Vagrant Cascadian <vagrant@freegeek.org>

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index ddd115c..5bfc21f 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -1845,7 +1845,7 @@
                 code);
         if (host_supports_vmx() && code == VMX_INVALID_GUEST_STATE) {
             fprintf(stderr,
-                    "\nIf you're runnning a guest on an Intel machine without "
+                    "\nIf you're running a guest on an Intel machine without "
                         "unrestricted mode\n"
                     "support, the failure can be most likely due to the guest "
                         "entering an invalid\n"