Rollup merge of #32447 - nodakai:dots-in-err-idx, r=Manishearth
Rollup merge of #32447 - nodakai:dots-in-err-idx, r=Manishearth

Remove ungrammatical dots from the error index.

They were probably meant as a shorthand for omitted code.

Part of #32446 but there should be a separate fix for the issue.

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