Fix unit tests for windows by explicitly closing test repos

Change-Id: If5f67d739f744f19b45e6f5c7597a213fd5bf025

org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CloneCommandTest.java

@@ -146,6 +146,7 @@ public class CloneCommandTest extends RepositoryTestCase {
 		command.setGitDir(new File(directory, ".git"));
 		command.setURI(fileUri());
 		Git git2 = command.call();
+		addRepoToClose(git2.getRepository());
 		assertEquals(directory, git2.getRepository().getWorkTree());
 		assertEquals(new File(directory, ".git"), git2.getRepository()
 				.getDirectory());
@@ -161,6 +162,7 @@ public class CloneCommandTest extends RepositoryTestCase {
 		command.setGitDir(gDir);
 		command.setURI(fileUri());
 		Git git2 = command.call();
+		addRepoToClose(git2.getRepository());
 		assertEquals(directory, git2.getRepository().getWorkTree());
 		assertEquals(gDir, git2.getRepository()
 				.getDirectory());
@@ -177,6 +179,7 @@ public class CloneCommandTest extends RepositoryTestCase {
 		command.setGitDir(gDir);
 		command.setURI(fileUri());
 		Git git2 = command.call();
+		addRepoToClose(git2.getRepository());
 		try {
 			assertNull(null, git2.getRepository().getWorkTree());
 			fail("Expected NoWorkTreeException");