rpc: minor nits on prior update

proto/compact_formats.proto

@@ -11,9 +11,9 @@ package proto;
 message CompactBlock {
     uint32 protoVersion = 1; // the version of this wire format, for storage
     uint64 height = 2; // the height of this block
-    bytes hash = 3; // the hash of this block
-    uint32 time = 4; // the block time
-    bytes header = 5; // OR send the full header
+    bytes hash = 3;
+    uint32 time = 4;
+    bytes header = 5; // (hash and time) OR (full header)
     repeated CompactTx vtx = 6; // compact transactions from this block
 }