only compare bytes that were read into the buffers in this round

[ghhenry]

While the current version is correct (because the buffers were equal during the previous round), it is not necessary to compare the extra bytes.

[coveralls]

Pull Request Test Coverage Report for Build 1274743751

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.8%) to 81.25%

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Totals
Change from base Build 466615514:	-0.8%
Covered Lines:	52
Relevant Lines:	64

---

💛 - Coveralls

[hlubek]

Thanks for your contribution and the optimization! Indeed we don't need to compare the full buffers.

[coveralls]

Pull Request Test Coverage Report for Build 1274743751

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.8%) to 81.25%

---

Totals
Change from base Build 466615514:	-0.8%
Covered Lines:	52
Relevant Lines:	64

---

💛 - Coveralls