Rollup merge of #82196 - Manishearth:display-caveat, r=m-ou-se
Rollup merge of #82196 - Manishearth:display-caveat, r=m-ou-se

Add caveat to Path::display() about lossiness

It's worth calling out that this API may do a lossy display.

r? ```@m-ou-se```

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