Fix spelling errors and y+ warning message

[bigfooted]

Proposed Changes

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Ffor wall functions a warning is issued when y+ < 5, but the value 5 should be the user defined limit obtained from the config option.
Furthermore, some spelling errors are correcred

Related Work

Resolve any issues (bug fix or feature request), note any related PRs, or mention interactions with the work of others, if any.

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