Updated `send` to `sent`. Matching indentation of closing comment. (#897)

contracts/ownership/HasNoEther.sol

@@ -8,11 +8,11 @@ import "./Ownable.sol";
  * @author Remco Bloemen <remco@2π.com>
  * @dev This tries to block incoming ether to prevent accidental loss of Ether. Should Ether end up
  * in the contract, it will allow the owner to reclaim this ether.
- * @notice Ether can still be send to this contract by:
+ * @notice Ether can still be sent to this contract by:
  * calling functions labeled `payable`
  * `selfdestruct(contract_address)`
  * mining directly to the contract address
-*/
+ */
 contract HasNoEther is Ownable {
 
   /**