std::error::Request: clean up documentation

[DanielEScherzer]

@rustbot label +A-docs

[rustbot]

r? @Mark-Simulacrum

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[mejrs]

r? me

I've taken a look at the docs and I notice some more of these small typos and inconsistencies in the docs (https://doc.rust-lang.org/nightly/core/error/struct.Request.html).

For example, use of eg., eg instead of e.g., request_value (notice the leading space), the braces in this line are weird

The motivating and prototypical use case is core::error::Error which would otherwise require a method per concrete type (eg. std::backtrace::Backtrace instance that implementors want to expose to users).

Would you be able to tackle these as well? Maybe there's more I'm missing here too.

[DanielEScherzer]

Would you be able to tackle these as well? Maybe there's more I'm missing here too.

Sure, did those and a few more. At some point I'm planning to try and do eg tree-wide (c.f. #153319)

[mejrs]

Thanks!

As an aside, I really hate phrases like e.g. and ex. and would rather rewrite docs so I don't need them. But that work is not for today.

@bors r+ rollup

[rust-bors]

📌 Commit 1d1aa9a has been approved by mejrs

It is now in the queue for this repository.