Merge remote-tracking branch 'origin/master' into check-updates

parity/cli/mod.rs

@@ -133,6 +133,7 @@ usage! {
 			or |c: &Config| otry!(c.network).reserved_peers.clone().map(Some),
 		flag_reserved_only: bool = false,
 			or |c: &Config| otry!(c.network).reserved_only.clone(),
+		flag_no_ancient_blocks: bool = false, or |_| None,
 
 		// -- API and Console Options
 		// RPC
@@ -535,6 +536,7 @@ mod tests {
 			flag_node_key: None,
 			flag_reserved_peers: Some("./path_to_file".into()),
 			flag_reserved_only: false,
+			flag_no_ancient_blocks: false,
 
 			// -- API and Console Options
 			// RPC

parity/cli/usage.txt

@@ -106,6 +106,8 @@ Networking Options:
                            all - connect to any IP address.
                            (default: {flag_allow_ips})
   --max-pending-peers NUM  Allow up to NUM pending connections. (default: {flag_max_pending_peers})
+  --no-ancient-blocks      Disable downloading old blocks after snapshot restoration
+                           or warp sync. (default: {flag_no_ancient_blocks})
 
 API and Console Options:
   --no-jsonrpc             Disable the JSON-RPC API server. (default: {flag_no_jsonrpc})