net/url: PathEscape should document difference

this prints true true, as expected:

package main

import "net/url"

func main() {
   println(
      url.PathEscape(" ") == "%20",
      url.QueryEscape(" ") == "+",
   )
}

so ideally, the documentation should reflect this difference. it does for Unescape:

PathUnescape is identical to QueryUnescape except that it does not unescape '+' to ' ' (space).

https://godocs.io/net/url#PathUnescape

but not Escape.

[seankhliao]

I don't think there's anything to document, PathEscape follows the same rule for spaces as everything else (%XX).
QueryEscape does not guarantee which transformations it makes, there are many possible ones, only that the output is safe.

OK, but couldn't we document what you just said? nothing in your comment is currently documented.