current_exe documentation incorrectly claims symlink can cause unexpected value

[alercah]

The documentation for std::env::current_exe claims that a symbolic link on Linux can cause an incorrect value to be returned. This isn't true, however; a hard link must be used. The ld command given in the example actually creates a hard link since -s isn't passed.

[etaoins]

Interestingly the symbolic link does confuse Mac OS X 10.13.2:

> cat main.rs
fn main() {
    println!("{:?}", std::env::current_exe());
}
> ./main
Ok("/Users/ryan/Code/./main")
> ln -s main not-main
> ./not-main
Ok("/Users/ryan/Code/./not-main")

[etaoins]

Looks like this was fixed in 17380f2

[pietroalbini]

Yep, looks like #46987 fixed it. Closing this.