fix(tasks): fix usage comment + typo in evm-relay-message-withdrawal

[grasphoper]

When trying to run the version in master, I get Error HH310: Invalid param --spokePool. Command line params must be lowercase.

This is why I changed params to lowercase.

FYI @bmzig

[bmzig]

This isn't an issue per se. You are supposed to run hardhat tasks with camel case like yarn evm-relay-message-withdrawal --spoke-pool [spoke_pool_address] --adapter [adapter_address] --l2-token [l2_token_address] --amount-to-return [amount_to_return]. With that being said, the comment on how to run it was indeed incorrect.

[grasphoper]

This isn't an issue per se. You are supposed to run hardhat tasks with camel case like yarn evm-relay-message-withdrawal --spoke-pool [spoke_pool_address] --adapter [adapter_address] --l2-token [l2_token_address] --amount-to-return [amount_to_return]. With that being said, the comment on how to run it was indeed incorrect.

Right, that's weird. Reverted back the name changes. Changed the comment to reflect the correct command