minor comment cleanup and typo patrol

[codecov[bot]]

Codecov Report

Base: 74.33% // Head: 74.33% // No change to project coverage :thumbsup:

Coverage data is based on head (9e4f057) compared to base (1815995). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #194 +/- ## ======================================= Coverage 74.33% 74.33% ======================================= Files 76 76 Lines 12560 12560 ======================================= Hits 9336 9336 Misses 2557 2557 Partials 667 667 ``` | [Impacted Files](https://codecov.io/gh/go-python/gpython/pull/194?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python) | Coverage Δ | | |---|---|---| | [py/bigint.go](https://codecov.io/gh/go-python/gpython/pull/194/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python#diff-cHkvYmlnaW50Lmdv) | `67.63% <ø> (ø)` | | | [py/bool.go](https://codecov.io/gh/go-python/gpython/pull/194/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python#diff-cHkvYm9vbC5nbw==) | `37.20% <ø> (ø)` | | | [py/bytes.go](https://codecov.io/gh/go-python/gpython/pull/194/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python#diff-cHkvYnl0ZXMuZ28=) | `54.60% <ø> (ø)` | | | [py/complex.go](https://codecov.io/gh/go-python/gpython/pull/194/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python#diff-cHkvY29tcGxleC5nbw==) | `32.52% <ø> (ø)` | | | [py/float.go](https://codecov.io/gh/go-python/gpython/pull/194/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python#diff-cHkvZmxvYXQuZ28=) | `53.48% <ø> (ø)` | | | [py/int.go](https://codecov.io/gh/go-python/gpython/pull/194/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python#diff-cHkvaW50Lmdv) | `77.81% <ø> (ø)` | | | [py/none.go](https://codecov.io/gh/go-python/gpython/pull/194/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python#diff-cHkvbm9uZS5nbw==) | `85.71% <ø> (ø)` | | | [py/run.go](https://codecov.io/gh/go-python/gpython/pull/194/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python#diff-cHkvcnVuLmdv) | `65.11% <ø> (ø)` | | | [py/string.go](https://codecov.io/gh/go-python/gpython/pull/194/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python#diff-cHkvc3RyaW5nLmdv) | `90.39% <ø> (ø)` | | | [stdlib/stdlib.go](https://codecov.io/gh/go-python/gpython/pull/194/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python#diff-c3RkbGliL3N0ZGxpYi5nbw==) | `57.89% <ø> (ø)` | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=go-python)

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