Add trailing space around `readlines` (#18542) #32

Job	Run time
cargo build (release)	6m 53s
cargo fmt	17s
Determine changes	9s
mkdocs	2m 23s
pre-commit	1s
python package	1m 16s
cargo clippy	1m 58s
cargo test (linux, release)	1s
cargo fuzz build	4m 2s
cargo build (msrv)	1s
cargo shear	24s
cargo test (linux)	1s
cargo test (wasm)	1m 49s
test scripts	54s
cargo test (windows)	1s
benchmarks	0s
formatter instabilities and black similarity	3m 29s
check playground	0s
ecosystem	0s
fuzz parser	0s
Fuzz for new ty panics	0s
test ruff-lsp	0s
	23m 39s

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