Rollup merge of #34977 - wettowelreactor:patch-3, r=steveklabnik
Rollup merge of #34977 - wettowelreactor:patch-3, r=steveklabnik

Fixed to spelling errors in char.rs

Fixed two small spelling mistakes (interator -> iterator) in the documentation for encode_utf8 and encode_utf16

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