style.9: be explicit about booleans in comparisons

[emaste]

Summary

We prefer if (count > 0) to if (count) (non-boolean variables) but this is not mentioned in style.9. Make it explicit.

[emaste]

Maybe should downgrade the statement to something like "if (count > 0) is preferred over if (count)"

[imp]

share/man/man9/style.9

772

s/Use/Prefer

[emaste]

Incorporate imp's feedback and reword sentence slightly

[emaste]

Reword sentence once more to tie in better to the example

[imp]

I'm good either way: with or without my suggestion.

[imp]

hit approve on earlier version, but I like the current one even better.