[systemd] only run update timer on normal boot (#506)

* [systemd] only run update timer on normal boot

Noticed that this is activated too early, e.g. when coming out of
"actdead" mode.

We really need to run only on a regularly booted system.

* Fix a typo in qdoc

* Use `PartOf=` instead of `After=`

---------

Co-authored-by: olf <[email protected]>

Author: nephros

src/bin/patchmanager-daemon/systemd/checkForUpdates-org.SfietKonstantin.patchmanager.timer

@@ -2,6 +2,7 @@
 Description=Patchmanager check for updates timer
 Requires=dbus.service
 After=dbus.service
+PartOf=multi-user.target
 
 [Timer]
 Unit=checkForUpdates-org.SfietKonstantin.patchmanager.service

src/index.qdoc

@@ -168,7 +168,7 @@
   Calls can be issued this way, for example:
 
   \badcode
-      dbus-send --print-reply --system --dest=org.SfietKonstantin.patchmanager /org/SfietKonstantin/patchmanager org.SfietKonstantin.patchmanager.checkforUpdates
+      dbus-send --print-reply --system --dest=org.SfietKonstantin.patchmanager /org/SfietKonstantin/patchmanager org.SfietKonstantin.patchmanager.checkForUpdates
   \endcode
 
   \section2 Systemd System Units