man: replace hard-coded /usr/lib

Replace some /usr/lib occurences in man/ with &rootprefix;/lib.

man/hwdb.xml

@@ -50,10 +50,10 @@
       regardless of the directories in which they live. However, files with
       identical filenames replace each other. Files in <filename>/etc</filename>
       have the highest priority, files in <filename>/run</filename> take precedence
-      over files with the same name in <filename>/usr/lib</filename>. This can be
+      over files with the same name in <filename>&rootprefix;/lib</filename>. This can be
       used to override a system-supplied hwdb file with a local file if needed;
       a symlink in <filename>/etc</filename> with the same name as a hwdb file in
-      <filename>/usr/lib</filename>, pointing to <filename>/dev/null</filename>,
+      <filename>&rootprefix;/lib</filename>, pointing to <filename>/dev/null</filename>,
       disables the hwdb file entirely. hwdb files must have the extension
       <filename>.hwdb</filename>; other extensions are ignored.</para>
 

man/systemd.link.xml

@@ -70,10 +70,10 @@
     However, files with identical filenames replace each other. Files
     in <filename>/etc</filename> have the highest priority, files in
     <filename>/run</filename> take precedence over files with the same
-    name in <filename>/usr/lib</filename>. This can be used to
+    name in <filename>&rootprefix;/lib</filename>. This can be used to
     override a system-supplied link file with a local file if needed;
     a symlink in <filename>/etc</filename> with the same name as a
-    link file in <filename>/usr/lib</filename>, pointing to
+    link file in <filename>&rootprefix;/lib</filename>, pointing to
     <filename>/dev/null</filename>, disables the link file
     entirely.</para>
 

man/systemd.netdev.xml

@@ -81,10 +81,10 @@
     identical filenames replace each other. Files in
     <filename>/etc</filename> have the highest priority, files in
     <filename>/run</filename> take precedence over files with the same
-    name in <filename>/usr/lib</filename>. This can be used to
+    name in <filename>&rootprefix;/lib</filename>. This can be used to
     override a system-supplied configuration file with a local file if
     needed; a symlink in <filename>/etc</filename> with the same name
-    as a configuration file in <filename>/usr/lib</filename>, pointing
+    as a configuration file in <filename>&rootprefix;/lib</filename>, pointing
     to <filename>/dev/null</filename>, disables the configuration file
     entirely.</para>
 

man/systemd.network.xml

@@ -77,10 +77,10 @@
     identical filenames replace each other. Files in
     <filename>/etc</filename> have the highest priority, files in
     <filename>/run</filename> take precedence over files with the same
-    name in <filename>/usr/lib</filename>. This can be used to
+    name in <filename>&rootprefix;/lib</filename>. This can be used to
     override a system-supplied configuration file with a local file if
     needed; a symlink in <filename>/etc</filename> with the same name
-    as a configuration file in <filename>/usr/lib</filename>, pointing
+    as a configuration file in <filename>&rootprefix;/lib</filename>, pointing
     to <filename>/dev/null</filename>, disables the configuration file
     entirely.</para>
 

man/udev.xml

@@ -65,10 +65,10 @@
       regardless of the directories in which they live. However, files with
       identical filenames replace each other. Files in <filename>/etc</filename>
       have the highest priority, files in <filename>/run</filename> take precedence
-      over files with the same name in <filename>/usr/lib</filename>. This can be
+      over files with the same name in <filename>&rootprefix;/lib</filename>. This can be
       used to override a system-supplied rules file with a local file if needed;
       a symlink in <filename>/etc</filename> with the same name as a rules file in
-      <filename>/usr/lib</filename>, pointing to <filename>/dev/null</filename>,
+      <filename>&rootprefix;/lib</filename>, pointing to <filename>/dev/null</filename>,
       disables the rules file entirely. Rule files must have the extension
       <filename>.rules</filename>; other extensions are ignored.</para>