mb2q: Add version info

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/mb2q b/mb2q
index 3167109..48bfad3 100755
--- a/mb2q
+++ b/mb2q
@@ -706,6 +706,7 @@
     parser.add_argument('-C', '--CollectCC', dest='collectcc',
                         action='store_true',
                         help='Collect all CCs from mail header')
+    parser.add_argument('--version', action='version', version='%(prog)s 0.2')
     args = parser.parse_args()
 
     try: