Externalize warning message in RefDirectory.delete()

Change-Id: Icec16c01853a3f5ea016d454b3d48624498efcce
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
diff --git a/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties b/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties
index 2150d5c..abe5161 100644
--- a/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties
+++ b/org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties
@@ -705,6 +705,7 @@
 tSizeMustBeGreaterOrEqual1=tSize must be >= 1
 unableToCheckConnectivity=Unable to check connectivity.
 unableToCreateNewObject=Unable to create new object: {0}
+unableToRemovePath=Unable to remove path ''{0}''
 unableToStore=Unable to store {0}.
 unableToWrite=Unable to write {0}
 unauthorized=Unauthorized
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java
index 2373b97..871d28d 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java
@@ -766,6 +766,7 @@ public static JGitText get() {
 	/***/ public String tSizeMustBeGreaterOrEqual1;
 	/***/ public String unableToCheckConnectivity;
 	/***/ public String unableToCreateNewObject;
+	/***/ public String unableToRemovePath;
 	/***/ public String unableToStore;
 	/***/ public String unableToWrite;
 	/***/ public String unauthorized;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/RefDirectory.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/RefDirectory.java
index 40c6de3..9b2865d 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/RefDirectory.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/RefDirectory.java
@@ -1293,7 +1293,8 @@ private static void delete(File file, int depth, LockFile rLck)
 				// same prefix
 				break;
 			} catch (IOException e) {
-				LOG.warn("Unable to remove path {}", dir, e); //$NON-NLS-1$
+				LOG.warn(MessageFormat.format(JGitText.get().unableToRemovePath,
+						dir), e);
 				break;
 			}
 			dir = dir.getParentFile();