[ISSUE] elogind system-sleep scripts location documentation issue

[ISSUE] elogind system-sleep scripts location documentation issue

[rubin55]

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New issue by rubin55 on void-packages repository

https://github.com/void-linux/void-packages/issues/40824

Description:
### Is this a new report?

Yes

### System Info

Void 6.0.10_1 x86_64 AuthenticAMD uptodate rrmFFFF

### Package(s) Affected

elogind-246.10_2

### Does a report exist for this bug with the project's home (upstream) and/or another distro?

No, it's Void Linux specific.

### Expected behaviour

Void (correctly!) configures /etc/elogind/system-sleep as the location for suspend/hibernate pre/post scripts. However, documentation does not indicate this. Upstream docs reference /lib64/elogind/system-sleep as the location. This leads to confusion with users.

I think /etc/elogind/system-sleep is correct, however Void docs should have a mention about this location.

### Actual behaviour

N/A, issue made by request of @paper42 (paper_ on irc).

### Steps to reproduce

1. install elogind
2. try to place a script in /usr/lib/elogind/system-sleep
3. observe it not working
4. place script in /etc/elogind/system-sleep
5. it works
6. wish for better docs

Re: elogind system-sleep scripts location documentation issue

[paper42]

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New comment by paper42 on void-packages repository

https://github.com/void-linux/void-packages/issues/40824#issuecomment-1329473660

Comment:
The [logind.conf(5)](https://man.voidlinux.org/logind.conf.5) manpage mentions both `/lib/elogind/system-sleep` and `/etc/elogind/system-sleep`, but the `/lib/elogind/system-sleep` path is incorrect, currently it should be `/usr/libexec/elogind/system-sleep`.

This is because we set `-Drootlibexecdir=/usr/libexec/elogind` and the build system uses
```
systemshutdowndir = join_paths(rootlibexecdir, 'system-shutdown')
systemsleepdir = join_paths(rootlibexecdir, 'system-sleep')
```
If we didn't set rootlibexecdir, it would default to `/lib/elogind` and this wouldn't be an issue.

a) the documentation should be adjusted
b) `systemsleepdir` and `systemshutdowndir` should be patched
c) `rootlibexecdir` should be changed (this would probably affect more than just this)

Alpine uses the same rootlibexecdir as we do, so they probably have the same issue, Gentoo uses /usr/lib/elogind.