Merge "Do not retain commit body during bitmap generation"

org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackWriterBitmapPreparer.java

@@ -114,6 +114,7 @@ class PackWriterBitmapPreparer {
 			IOException {
 		pm.beginTask(JGitText.get().selectingCommits, ProgressMonitor.UNKNOWN);
 		RevWalk rw = new RevWalk(reader);
+		rw.setRetainBody(false);
 		WalkResult result = findPaths(rw, expectedNumCommits);
 		pm.endTask();