man: document $MAINPID

[elogind.git] / man / systemd.exec.xml

diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml
index 7f97ca035d2be3d049b9466b81142d8f0e060564..7dbe05d265123e08411eedacfbbb7dd606551591 100644 (file)
--- a/man/systemd.exec.xml
+++ b/man/systemd.exec.xml
@@ -472,7 +472,7 @@
                         <varlistentry>
                                 <term><varname>StandardError=</varname></term>
                                 <listitem><para>Controls where file
-                                descriptor 2 (standard error) of the
+                                descriptor 2 (STDERR) of the
                                 executed processes is connected to.
                                 The available options are identical to
                                 those of
@@ -1208,6 +1208,17 @@
                                 tty.</para></listitem>
                         </varlistentry>
 
+                        <varlistentry>
+                                <term><varname>$MAINPID</varname></term>
+
+                                <listitem><para>The PID of the units
+                                main process if it is known. This is
+                                only set for control processes as
+                                invoked by
+                                <varname>ExecReload=</varname> and
+                                similar.  </para></listitem>
+                        </varlistentry>
+
                         <varlistentry>
                                 <term><varname>$MANAGERPID</varname></term>