Minor refactor of functionally same code

[adam-singer]

Description

• Use truncate over resize_with(1, || "".to_string()) reduce added function allocations/calls
• Reformat if/let logic
• Fix spelling error

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to
  not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please also list any relevant details for your test configuration

Checklist

• Updated documentation if needed
• Tests added/amended
• bazel test //... passes locally
• PR is contained in a single commit, using git amend see some docs

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Name	Status	Preview	Comments	Updated (UTC)
nativelink-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 12, 2024 6:49pm

[allada]

Reviewed 3 of 3 files at r1, all commit messages.
Reviewable status: 1 of 1 LGTMs obtained, and pending CI: Remote / large-ubuntu-22.04

[aaronmondal]

Reviewed all commit messages.
Reviewable status: 1 of 1 LGTMs obtained, and pending CI: Remote / large-ubuntu-22.04

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nativelink-util/src/evicting_map.rs line 414 at r1 (raw file):

                "Total size of all items in the store",
            );
            c.publish("items_in_store_total", &state.lru.len(), "Mumber of items in the store");

Lol

[adam-singer]

Reviewable status: complete! 1 of 1 LGTMs obtained

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nativelink-util/src/evicting_map.rs line 414 at r1 (raw file):

Previously, aaronmondal (Aaron Siddhartha Mondal) wrote…

Lol

Done.

[adam-singer]

Reviewable status: complete! 2 of 1 LGTMs obtained