Issue found during installing systemd unit from repo

[Lei YU]

On Tue, Nov 5, 2019 at 7:05 AM Brad Bishop <bradleyb at fuzziesquirrel.com> wrote:
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> > On Nov 4, 2019, at 12:39 AM, Lei YU <mine260309 at gmail.com> wrote:
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> > https://github.com/openbmc/openbmc/issues/3627
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> Hi Lei YU
>
> Do you have a good handle on the resolution to this problem?

The simple way is to "fix" the services in repo:
* Use ${xxx} instead of ${{xxx}}
* Manually expand the "known" variables, e.g. {envfiledir} to /etc

Then we are all good.
I am not sure if that is the *expected* fix though.