remote: remoteDispatchDomainGetJobStats: Encode typed parameter strings

String typed parameter values were introduced in v0.9.7-30-g40624d32.
virDomainGetJobStats was introduced in v1.0.2-239-g4dd00f42 so all
clients already support typed parameter stings at that time thus we can
enable it unconditionally.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>

src/remote/remote_daemon_dispatch.c

@@ -5505,7 +5505,7 @@ remoteDispatchDomainGetJobStats(virNetServerPtr server G_GNUC_UNUSED,
                                 REMOTE_DOMAIN_JOB_STATS_MAX,
                                 (virTypedParameterRemotePtr *) &ret->params.params_val,
                                 &ret->params.params_len,
-                                0) < 0)
+                                VIR_TYPED_PARAM_STRING_OKAY) < 0)
         goto cleanup;
 
     rv = 0;