clippy::single_match(_else) may be machine applicable

[kornelski]

changelog: [`single_match`]: make the lint machine-applicable
changelog: [`single_match_else`]: make the lint machine-applicable

---

The lint doesn't use placeholders. I've tried it on my codebases, and all instances of it applied without problems.

[rustbot]

r? @blyxyas

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[blyxyas]

Hmmmm.... I've been trying to test this, but I think it's alright. It shouldn't cause any issues :) ❤️

[blyxyas]

@bors r+

[bors]

📌 Commit b700d9c has been approved by blyxyas

It is now in the queue for this repository.

[bors]

⌛ Testing commit b700d9c with merge 9e02abe...

[bors]

☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test
Approved by: blyxyas
Pushing 9e02abe to master...