long number (with the length varying by architecture), so they can be
unambiguously distinguished.
+ * SuccessExitStatus=, RestartPreventExitStatus=, and
+ RestartForceExitStatus= now accept exit code names (e.g. "DATAERR" is
+ equivalent to "65"). systemd-analyze learnt a new 'exit-codes' verb
+ to display those exit code name mappings.
+
* /usr/sbin/halt.local is no longer supported. Implementation in
distributions was inconsistent and it seems this functionality was
very rarely used.