winbind: Test wbinfo -u with more than 1000 users

winbind: Test wbinfo -u with more than 1000 users

winbind asks dcerpc_samr_LookupRids in one batch, where samr.idl has

	NTSTATUS samr_LookupRids(
		[in,ref]      policy_handle *domain_handle,
		[in,range(0,1000)] uint32 num_rids,
		[in,size_is(1000),length_is(num_rids)] uint32 rids[],
		[out,ref]     lsa_Strings *names,
		[out,ref]     samr_Ids *types
		);

limiting num_rids to 1000 entries. Test this.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15366

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit f633389f36e79d3e772777ad7ca13012e3616273)