path: refactor for less indentation

This just switches the statements in a way that it reduces the
overall indentation. The function has a very deep indentation in
general and this should improve the readability.

PR-URL: https://github.com/nodejs/node/pull/26917


Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>