looprpc: fix doc on routing fee units

looprpc/client.pb.go

@@ -119,12 +119,12 @@ type LoopOutRequest struct {
 	//Base58 encoded destination address for the swap.
 	Dest string `protobuf:"bytes,2,opt,name=dest,proto3" json:"dest,omitempty"`
 	//*
-	//Maximum off-chain fee in msat that may be paid for payment to the server.
+	//Maximum off-chain fee in sat that may be paid for swap payment to the server.
 	//This limit is applied during path finding. Typically this value is taken
 	//from the response of the GetQuote call.
 	MaxSwapRoutingFee int64 `protobuf:"varint,3,opt,name=max_swap_routing_fee,json=maxSwapRoutingFee,proto3" json:"max_swap_routing_fee,omitempty"`
 	//*
-	//Maximum off-chain fee in msat that may be paid for payment to the server.
+	//Maximum off-chain fee in sat that may be paid for the prepay to the server.
 	//This limit is applied during path finding. Typically this value is taken
 	//from the response of the GetQuote call.
 	MaxPrepayRoutingFee int64 `protobuf:"varint,4,opt,name=max_prepay_routing_fee,json=maxPrepayRoutingFee,proto3" json:"max_prepay_routing_fee,omitempty"`

looprpc/client.proto

@@ -118,14 +118,14 @@ message LoopOutRequest {
     string dest = 2;
 
     /**
-    Maximum off-chain fee in msat that may be paid for payment to the server.
+    Maximum off-chain fee in sat that may be paid for swap payment to the server.
     This limit is applied during path finding. Typically this value is taken
     from the response of the GetQuote call.
     */
     int64 max_swap_routing_fee = 3;
 
     /**
-    Maximum off-chain fee in msat that may be paid for payment to the server.
+    Maximum off-chain fee in sat that may be paid for the prepay to the server.
     This limit is applied during path finding. Typically this value is taken
     from the response of the GetQuote call.
     */

looprpc/client.swagger.json

@@ -380,12 +380,12 @@
         "max_swap_routing_fee": {
           "type": "string",
           "format": "int64",
-          "description": "*\nMaximum off-chain fee in msat that may be paid for payment to the server.\nThis limit is applied during path finding. Typically this value is taken\nfrom the response of the GetQuote call."
+          "description": "*\nMaximum off-chain fee in sat that may be paid for swap payment to the server.\nThis limit is applied during path finding. Typically this value is taken\nfrom the response of the GetQuote call."
         },
         "max_prepay_routing_fee": {
           "type": "string",
           "format": "int64",
-          "description": "*\nMaximum off-chain fee in msat that may be paid for payment to the server.\nThis limit is applied during path finding. Typically this value is taken\nfrom the response of the GetQuote call."
+          "description": "*\nMaximum off-chain fee in sat that may be paid for the prepay to the server.\nThis limit is applied during path finding. Typically this value is taken\nfrom the response of the GetQuote call."
         },
         "max_swap_fee": {
           "type": "string",