Comment 3 for bug 1734207

So the final commit for this issue on 5.5.2 is [1].

Current Ubuntu releases are on
- Zesty/Artful on 5.5.1
- Xenial on 5.3.5

Purely from a "patch applies" POV this applies to all three.
But obviously the confidence that this works perfectly fine is much higher on 5.5.1 than on 5.3.5.

I have some ike psk tests that I'll use on a test build with that in Xenial.

[1]: https://git.strongswan.org/?p=strongswan.git;a=commit;h=e92d8a56b376e6964e5f1b53b2d261f167e0b166