Description
According to perldoc -f chdir:
It returns true on success, false otherwise.
However, chdir actually returns (integer) 1 and 0. This is mostly observable in the failure case, which (according to the documentation) should return a value that is eq "", but isn't.
Steps to Reproduce
$ perl -wE 'say chdir "/invalid*"'
0
$ perl -Mexperimental=builtin -wE 'say builtin::is_bool chdir "/invalid*"'
$
Expected behavior
$ perl -wE 'say chdir "/invalid*"'
$ perl -Mexperimental=builtin -wE 'say builtin::is_bool chdir "/invalid*"'
1
$
I.e. a false value should stringify to the empty string and be is_bool.
Alternatively, the documentation should be changed to match the existing behavior.
(This is with v5.40.0.)
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