has no main PID. The control PID is the PID of the current start/stop/reload process running and is 0
if no such process is currently running. That means that <varname>ExecMainPID</varname> and
<varname>MainPID</varname> differ in the way that the latter immediately reflects whether a main
- process is currently running while the latter possible contains information collected from the last run
+ process is currently running while the former possibly contains information collected from the last run
even if the process is no longer around.</para>
<para><varname>StatusText</varname>, <varname>StatusErrno</varname>, <varname>StatusBusError</varname>,