Fix typo in Split docstrings #30

Job	Run time
linux (ubuntu-latest, x86_64)	2m 0s
linux (ubuntu-latest, x86)	2m 18s
musllinux (ubuntu-latest, x86_64)	2m 3s
linux (ubuntu-latest, aarch64)	2m 28s
linux (ubuntu-latest, armv7)	2m 40s
musllinux (ubuntu-latest, x86)	1m 45s
linux (ubuntu-latest, s390x)	2m 37s
musllinux (ubuntu-latest, aarch64)	1m 48s
linux (ubuntu-latest, ppc64le)	2m 18s
musllinux (ubuntu-latest, armv7)	1m 49s
windows (windows-latest, x64)	4m 33s
windows (windows-latest, x86)	4m 2s
macos (macos-12, x86_64)	1s
macos (macos-14, aarch64)	1m 24s
sdist	18s
Release	0s
	32m 4s

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