Fixed Kurt Barry's audit feedback

[jalextowle]

Resolved Issues

Description

Addresses the issues mentioned in Kurt Barry's review of the mint and burn functions

[github-actions]

Hyperdrive Gas Benchmark

Benchmark suite	Current: 74b7c39	Previous: 56ec8cb	Deviation	Status
addLiquidity: min	33877 gas	33877 gas	0%	🟰
addLiquidity: avg	202075 gas	203470 gas	-0.6856%	✅
addLiquidity: max	187767 gas	189527 gas	-0.9286%	✅
burn: min	31471 gas	31471 gas	0%	🟰
burn: avg	136419 gas	136585 gas	-0.1215%	✅
burn: max	111163 gas	111163 gas	0%	🟰
checkpoint: min	40267 gas	40267 gas	0%	🟰
checkpoint: avg	148325 gas	148322 gas	0.0020%	🚨
checkpoint: max	149197 gas	149197 gas	0%	🟰
closeLong: min	31459 gas	31459 gas	0%	🟰
closeLong: avg	146460 gas	146436 gas	0.0164%	🚨
closeLong: max	126643 gas	126631 gas	0.0095%	🚨
closeShort: min	31425 gas	31425 gas	0%	🟰
closeShort: avg	137937 gas	137684 gas	0.1838%	🚨
closeShort: max	133396 gas	132669 gas	0.5480%	🚨
initialize: min	31291 gas	31291 gas	0%	🟰
initialize: avg	355230 gas	355230 gas	0%	🟰
initialize: max	355631 gas	355631 gas	0%	🟰
openLong: min	33440 gas	33440 gas	0%	🟰
openLong: avg	179161 gas	178995 gas	0.0927%	🚨
openLong: max	191472 gas	191472 gas	0%	🟰
openShort: min	33874 gas	33874 gas	0%	🟰
openShort: avg	180771 gas	180932 gas	-0.0890%	✅
openShort: max	170046 gas	170046 gas	0%	🟰
redeemWithdrawalShares: min	31259 gas	31259 gas	0%	🟰
redeemWithdrawalShares: avg	78475 gas	77654 gas	1.0573%	🚨
redeemWithdrawalShares: max	67470 gas	67460 gas	0.0148%	🚨
removeLiquidity: min	31243 gas	31243 gas	0%	🟰
removeLiquidity: avg	212812 gas	213340 gas	-0.2475%	✅
removeLiquidity: max	210777 gas	220553 gas	-4.4325%	✅

This comment was automatically generated by workflow using github-action-benchmark.

[coveralls]

Pull Request Test Coverage Report for Build 13824512289

Details

• 5 of 5 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.06%) to 86.624%

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Totals
Change from base Build 13757743675:	0.06%
Covered Lines:	3251
Relevant Lines:	3753

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💛 - Coveralls