Merge pull request #4 from OffchainLabs/gas-estimate-no-padding

Document that gasEstimateL1Component doesn't pad its estimate

src/node-interface/NodeInterface.sol

@@ -98,8 +98,10 @@ interface NodeInterface {
     /**
      * @notice Estimates a transaction's l1 costs.
      * @dev Use eth_call to call.
-     *      This method is exactly like gasEstimateComponents, but doesn't include the l2 component
+     *      This method is similar to gasEstimateComponents, but doesn't include the l2 component
      *      so that the l1 component can be known even when the tx may fail.
+     *      This method also doesn't pad the estimate as gas estimation normally does.
+     *      If using this value to submit a transaction, we'd recommend first padding it by 10%.
      * @param data the tx's calldata. Everything else like "From" and "Gas" are copied over
      * @param to the tx's "To" (ignored when contractCreation is true)
      * @param contractCreation whether "To" is omitted