Avoid NPE in Init

We should grab the repository directory from the command to
avoid an NPE if no git directory is passed in via the CLI.

Change-Id: I649467c6d84bbc0d26a070d0d4ff1e6f81fd5bad
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>

org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Init.java

 
 import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.api.InitCommand;
+import org.eclipse.jgit.lib.Repository;
 import org.kohsuke.args4j.Option;
 
 @Command(common = true, usage = "usage_CreateAnEmptyGitRepository")
 		InitCommand command = Git.init();
 		command.setBare(bare);
 		command.setDirectory(gitdir);
-		command.call();
-		out.println(MessageFormat.format(CLIText.get().initializedEmptyGitRepositoryIn, gitdir.getAbsolutePath()));
+		Repository repository = command.call().getRepository();
+		out.println(MessageFormat.format(
+				CLIText.get().initializedEmptyGitRepositoryIn, repository
+						.getDirectory().getAbsolutePath()));
 	}
 }