Rollup merge of #83463 - ijackson:exitstatusext-doc-grammar, r=kennytm
Rollup merge of #83463 - ijackson:exitstatusext-doc-grammar, r=kennytm

ExitStatusExt: Fix missing word in two docs messages

Looks like I missed the lack of these "and"s.

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