src/jdk.jpackage/share/classes/jdk/jpackage/internal/resources/MainResources.properties

@@ -79,12 +79,12 @@
 ERR_MissingMode=Error: Mode is not specified.
 ERR_MissingArgument=Error: Missing argument: {0}.
 ERR_MissingAppResources=Error: No application jars found.
 ERR_AppImageNotExist=Error: App image directory "{0}" does not exist.
 ERR_AppImageInvalid=Error: App image directory "{0}" does not contain "app" sub-directory.
-ERR_NoAddLauncherName=Error: Add Launchers require a name parameter.
-ERR_NoUniqueName=Error: Add Launchers require a unique name parameter.
+ERR_NoAddLauncherName=Error: --add-launcher option require a name and a file path (--add-launcher <name>=<file path>).
+ERR_NoUniqueName=Error: --add-launcher <name>=<file path> require a unique name.
 ERR_NoJreInstallerName=Error: Jre Installers require a name parameter.
 ERR_InvalidAppName=Error: Invalid Application name: {0}.
 ERR_InvalidSLName=Error: Invalid Add Launcher name: {0}.
 ERR_LicenseFileNotExit=Error: Specified license file does not exist.
 ERR_BuildRootInvalid=Error: temp-root ({0}) must be non-existant directory.