UntrackedFilesHandler: Fix non-localized string

Change-Id: Ida7b9ddc991515ab233763f2cb985853c9143a3c
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.pgm/resources/org/eclipse/jgit/pgm/internal/CLIText.properties

@@ -75,6 +75,7 @@ fromURI=From {0}
 initializedEmptyGitRepositoryIn=Initialized empty Git repository in {0}
 invalidHttpProxyOnlyHttpSupported=Invalid http_proxy: {0}: Only http supported.
 invalidRecurseSubmodulesMode=Invalid recurse submodules mode: {0}
+invalidUntrackedFilesMode=Invalid untracked files mode ''{0}''
 jgitVersion=jgit version {0}
 lineFormat={0}
 listeningOn=Listening on {0}

org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/internal/CLIText.java

@@ -151,6 +151,7 @@ public class CLIText extends TranslationBundle {
 	/***/ public String initializedEmptyGitRepositoryIn;
 	/***/ public String invalidHttpProxyOnlyHttpSupported;
 	/***/ public String invalidRecurseSubmodulesMode;
+	/***/ public String invalidUntrackedFilesMode;
 	/***/ public String jgitVersion;
 	/***/ public String lfsNoAccessKey;
 	/***/ public String lfsNoSecretKey;

org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/opt/UntrackedFilesHandler.java

@@ -42,6 +42,9 @@
  */
 package org.eclipse.jgit.pgm.opt;
 
+import java.text.MessageFormat;
+
+import org.eclipse.jgit.pgm.internal.CLIText;
 import org.kohsuke.args4j.CmdLineException;
 import org.kohsuke.args4j.CmdLineParser;
 import org.kohsuke.args4j.OptionDef;
@@ -102,8 +105,8 @@ public class UntrackedFilesHandler extends StringOptionHandler {
 			if ("no".equals(mode) || "all".equals(mode)) { //$NON-NLS-1$ //$NON-NLS-2$
 				setter.addValue(mode);
 			} else {
-				throw new CmdLineException(owner, String.format(
+				throw new CmdLineException(owner, MessageFormat
-						"Invalid untracked files mode '%s'", mode)); //$NON-NLS-1$
+						.format(CLIText.get().invalidUntrackedFilesMode, mode));
 			}
 			return 1;
 		} else {