man: add note that %h/%u/%U are mostly useless

Fixes #12389.

(cherry picked from commit b4e2407716731d1ce099bad1c2778f7a4424ed2e)

Gbp-Pq: Name man-add-note-that-h-u-U-are-mostly-useless.patch

diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml
index 81a02253ed9bf9b0631f12fd426f47f6ac645318..ae834f0f51b739263f9347453d277a1cd45b8a9c 100644 (file)
--- a/man/systemd.unit.xml
+++ b/man/systemd.unit.xml
@@ -1597,7 +1597,9 @@
           <row>
             <entry><literal>%h</literal></entry>
             <entry>User home directory</entry>
-            <entry>This is the home directory of the user running the service manager instance. In case of the system manager this resolves to <literal>/root</literal>.</entry>
+            <entry>This is the home directory of the <emphasis>user running the service manager instance</emphasis>. In case of the system manager this resolves to <literal>/root</literal>.
+
+Note that this setting is <emphasis>not</emphasis> influenced by the <varname>User=</varname> setting configurable in the [Service] section of the service unit.</entry>
           </row>
           <row>
             <entry><literal>%H</literal></entry>
@@ -1687,12 +1689,16 @@
           <row>
             <entry><literal>%u</literal></entry>
             <entry>User name</entry>
-            <entry>This is the name of the user running the service manager instance. In case of the system manager this resolves to <literal>root</literal>.</entry>
+            <entry>This is the name of the <emphasis>user running the service manager instance</emphasis>. In case of the system manager this resolves to <literal>root</literal>.
+
+Note that this setting is <emphasis>not</emphasis> influenced by the <varname>User=</varname> setting configurable in the [Service] section of the service unit.</entry>
           </row>
           <row>
             <entry><literal>%U</literal></entry>
             <entry>User UID</entry>
-            <entry>This is the numeric UID of the user running the service manager instance. In case of the system manager this resolves to <literal>0</literal>.</entry>
+            <entry>This is the numeric UID of the <emphasis>user running the service manager instance</emphasis>. In case of the system manager this resolves to <literal>0</literal>.
+
+Note that this setting is <emphasis>not</emphasis> influenced by the <varname>User=</varname> setting configurable in the [Service] section of the service unit.</entry>
           </row>
           <row>
             <entry><literal>%v</literal></entry>