--- a/src/jdk.jpackage/share/classes/jdk/jpackage/internal/resources/HelpResources_ja.properties	Sun Jan 06 16:58:28 2019 -0500
+++ b/src/jdk.jpackage/share/classes/jdk/jpackage/internal/resources/HelpResources_ja.properties	Mon Jan 07 16:39:30 2019 -0500
@@ -123,8 +123,10 @@
 \          "win-shortcut", and "win-console" can be used to describe\n\
 \          the secondary launcher.\n\
 \  --build-root <file path>\n\
-\          Path of the directory used to create temporary files\n\
+\          Path of a new or empty directory used to create temporary files\n\
 \          (absolute path or relative to the current directory)\n\
+\          If not specified, a temporary directory will be created and\n\
+\          removed upon the task completion.\n\
 \  --runtime-image <file path>\n\
 \          Path of the predefined runtime image that is used to build\n\
 \          an application image and installable package\n\
@@ -148,7 +150,8 @@
 \          Category or group of the application\n\
 \  --vendor <vendor string>\n\
 \          Vendor of the application\n\
-\  --force Allow the deletion of any existing output root directory\n\
+\  --force\n\
+\          Allow the deletion of any existing output root directory\n\
 \          when creating an Application image\n\
 \  --resource-dir <path>\n\
 \          Path to override jpackage resources\n\