man: grammar fixes for "regardless"

man/systemd.exec.xml

@@ -2035,7 +2035,7 @@ BindReadOnlyPaths=/var/lib/systemd</programlisting>
         process capability isolation.</para>
 
         <para>If this mode is enabled, all unit processes are run without privileges in the host user
-        namespace (regardless if the unit's own user/group is <literal>root</literal> or not). Specifically
+        namespace (regardless of whether the unit's own user/group is <literal>root</literal> or not). Specifically
         this means that the process will have zero process capabilities on the host's user namespace, but
         full capabilities within the service's user namespace. Settings such as
         <varname>CapabilityBoundingSet=</varname> will affect only the latter, and there's no way to acquire
@@ -3327,7 +3327,7 @@ StandardInputData=V2XigLJyZSBubyBzdHJhbmdlcnMgdG8gbG92ZQpZb3Uga25vdyB0aGUgcnVsZX
         user-defined string identifying the namespace. If not used the processes of the service are run in
         the default journal namespace, i.e. their log stream is collected and processed by
         <filename>systemd-journald.service</filename>. If this option is used any log data generated by
-        processes of this unit (regardless if via the <function>syslog()</function>, journal native logging
+        processes of this unit (regardless of whether via the <function>syslog()</function>, journal native logging
         or stdout/stderr logging) is collected and processed by an instance of the
         <filename>systemd-journald@.service</filename> template unit, which manages the specified
         namespace. The log data is stored in a data store independent from the default log namespace's data