Suppress not-externalized string warnings

Change-Id: I2a0a588227d451cb175e17eef20ecb6fe9e9ef80
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/FooterLine.java b/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/FooterLine.java
index cadeaec..f4f4764 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/FooterLine.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/FooterLine.java
@@ -200,7 +200,7 @@ public String getKey() {
 	 *         character encoding.
 	 */
 	public String getValue() {
-		return RawParseUtils.decode(enc, buffer, valStart, valEnd).replaceAll("\n +", " ");
+		return RawParseUtils.decode(enc, buffer, valStart, valEnd).replaceAll("\n +", " "); //$NON-NLS-1$ //$NON-NLS-2$
 	}
 
 	/**