--- old/src/jdk.javadoc/share/classes/com/sun/tools/javadoc/resources/javadoc.properties	2017-02-08 11:44:14.718688942 -0800
+++ new/src/jdk.javadoc/share/classes/com/sun/tools/javadoc/resources/javadoc.properties	2017-02-08 11:44:14.579687897 -0800
@@ -82,7 +82,6 @@
 \                                   Specify additional modules to be considered as required by a\n\
 \                                   given module. <other-module> may be ALL-UNNAMED to require\n\
 \                                   the unnamed module.\n\
-\  -Xmodule:<module-name>           Specify a module to which the classes being compiled belong.\n\
 \  --patch-module <module>=<file>(:<file>)*\n\
 \                                   Override or augment a module with classes and resources\n\
 \                                   in JAR files or directories\n