Update javadoc for EMPTY_BLOB_ID

Found original version with:

  $ git describe --contains $(git blame fc4d4b5340911989e444b150ae6a859f486feba9 org.eclipse.jgit/src/org/eclipse/jgit/lib/Constants.java | grep EMPTY_BLOB_ID | cut -d' ' -f1)
  v0.9.1~164

Change-Id: I1f86bde42615c8b64064894bde44f82660b38d0f

diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/lib/Constants.java b/org.eclipse.jgit/src/org/eclipse/jgit/lib/Constants.java
index ecebd54089314f0a3d1b91b6cf0a0528d02f000c..d6e55c55396dba28fd080c25172c926270104469 100644 (file)
--- a/org.eclipse.jgit/src/org/eclipse/jgit/lib/Constants.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/lib/Constants.java
@@ -687,7 +687,11 @@ public final class Constants {
         */
        public static final String COMMIT_EDITMSG = "COMMIT_EDITMSG";
 
-       /** objectid for the empty blob */
+       /**
+        * Well-known object ID for the empty blob.
+        *
+        * @since 0.9.1
+        */
        public static final ObjectId EMPTY_BLOB_ID = ObjectId
                        .fromString("e69de29bb2d1d6434b8b29ae775ad8c2e48c5391");