PackObjectSizeIndexV1: fix boxing warnings

Change-Id: I25e6194fb8bf09dcac1613cec8349c3893a4f81a
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackObjectSizeIndexV1.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackObjectSizeIndexV1.java
index e172f14..9957f54 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackObjectSizeIndexV1.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackObjectSizeIndexV1.java
@@ -149,7 +149,8 @@ static IntArray from(InputStream in, int ints) throws IOException {
 			byte[] data = in.readNBytes(expectedBytes);
 			if (data.length < expectedBytes) {
 				throw new IOException(MessageFormat
-						.format(JGitText.get().unableToReadFullArray, ints));
+						.format(JGitText.get().unableToReadFullArray,
+								Integer.valueOf(ints)));
 			}
 			return new IntArray(data);
 		}
@@ -217,7 +218,8 @@ static LongArray from(InputStream in, int longs) throws IOException {
 			byte[] data = in.readNBytes(longs * LONG_SIZE);
 			if (data.length < longs * LONG_SIZE) {
 				throw new IOException(MessageFormat
-						.format(JGitText.get().unableToReadFullArray, longs));
+						.format(JGitText.get().unableToReadFullArray,
+								Integer.valueOf(longs)));
 			}
 			return new LongArray(data);
 		}