Rollup merge of #65638 - dsincl12:master, r=Centril
Rollup merge of #65638 - dsincl12:master, r=Centril

Rename the default argument 'def' to 'default'

Fixes: #65492

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