fish: Create a separate FILES section in the manpage.

fish/guestfish.pod

@@ -830,8 +830,8 @@ L</REMOTE CONTROL GUESTFISH OVER A SOCKET>.
 
 =item HOME
 
-If compiled with GNU readline support, then the command history
-is saved in C<$HOME/.guestfish>
+If compiled with GNU readline support, various files in the
+home directory can be used.  See L</FILES>.
 
 =item LIBGUESTFS_APPEND
 
@@ -881,6 +881,31 @@ enough.
 
 =back
 
+=head1 FILES
+
+=over 4
+
+=item $HOME/.guestfish
+
+If compiled with GNU readline support, then the command history
+is saved in this file.
+
+=item $HOME/.inputrc
+
+=item /etc/inputrc
+
+If compiled with GNU readline support, then these files can be used to
+configure readline.  For further information, please see
+L<readline(3)/INITIALIZATION FILE>.
+
+To write rules which only apply to guestfish, use:
+
+ $if guestfish
+ ...
+ $endif
+
+=back
+
 =head1 SEE ALSO
 
 L<guestfs(3)>,