libvlc: inform that the option was deprecated since 2.0.0

(cherry picked from commit 1bde8807)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

src/libvlc-module.c

@@ -2075,7 +2075,7 @@ vlc_module_begin ()
                 ACCESS_OUTPUT_TEXT, ACCESS_OUTPUT_LONGTEXT, true )
     add_integer( "ttl", -1, TTL_TEXT, TTL_LONGTEXT, true )
     add_string( "miface", NULL, MIFACE_TEXT, MIFACE_LONGTEXT, true )
-    add_obsolete_string( "miface-addr" )
+    add_obsolete_string( "miface-addr" ) /* since 2.0.0 */
     add_integer( "dscp", 0, DSCP_TEXT, DSCP_LONGTEXT, true )
 
     set_subcategory( SUBCAT_SOUT_PACKETIZER )