Fix string externalization warnings in BaseFormat

Change-Id: Ie40aa1f889191e45e4d4a7a144c3176d521f6cfa
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.archive/resources/org/eclipse/jgit/archive/internal/ArchiveText.properties

@@ -1,2 +1,3 @@
+cannotSetOption=Cannot set option: {0}
 pathDoesNotMatchMode=Path {0} does not match mode {1}
 unsupportedMode=Unsupported mode {0}

org.eclipse.jgit.archive/src/org/eclipse/jgit/archive/BaseFormat.java

@@ -45,9 +45,11 @@ package org.eclipse.jgit.archive;
 
 import java.beans.Statement;
 import java.io.IOException;
+import java.text.MessageFormat;
 import java.util.Map;
 
 import org.apache.commons.compress.archivers.ArchiveOutputStream;
+import org.eclipse.jgit.archive.internal.ArchiveText;
 import org.eclipse.jgit.util.StringUtils;
 
 /**
@@ -71,11 +73,11 @@ public class BaseFormat {
 			Map<String, Object> o) throws IOException {
 		for (Map.Entry<String, Object> p : o.entrySet()) {
 			try {
-				new Statement(s,
-						"set" + StringUtils.capitalize(p.getKey()),
-						new Object[]{p.getValue()}).execute();
+				new Statement(s, "set" + StringUtils.capitalize(p.getKey()), //$NON-NLS-1$
+						new Object[] { p.getValue() }).execute();
 			} catch (Exception e) {
-				throw new IOException("cannot set option: " + p.getKey(), e);
+				throw new IOException(MessageFormat.format(
+						ArchiveText.get().cannotSetOption, p.getKey()), e);
 			}
 		}
 		return s;

org.eclipse.jgit.archive/src/org/eclipse/jgit/archive/internal/ArchiveText.java

@@ -58,6 +58,7 @@ public class ArchiveText extends TranslationBundle {
 	}
 
 	// @formatter:off
+	/***/ public String cannotSetOption;
 	/***/ public String pathDoesNotMatchMode;
 	/***/ public String unsupportedMode;
 }