Rollup merge of #72258 - Rustin-Liu:rustin-patch-typo, r=dtolnay
Rollup merge of #72258 - Rustin-Liu:rustin-patch-typo, r=dtolnay

Fix typo Arbintrary to Arbitrary

Signed-off-by: Rustin-Liu <rustin.liu@gmail.com>

Closes #72122.

graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust