Rollup merge of #143423 - hkBst:clippy-fix-1, r=workingjubilee

address clippy formatting nits

- int_log10.rs: change top level doc comments to outer
- collect.rs: remove empty line after doc comment
- clippy fix: markdown indentation for indented items after line break: a markdown list item continued over multiples lines, but those following lines which are part of the same item are not indented
- clippy fix: bound in one place: when there is a bound in angle brackets and another bound on the same variable in a where clause

Author: GuillaumeGomez