meta: Update to modern exception syntax

Update older exception syntax to modern one required by python 3.
Compatible with python 2.7.

(From OE-Core rev: d13f0ac614f1d1e2ef2c8ddc71cbfcf76a8dc3f2)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oe/data.py

@@ -13,5 +13,5 @@ def typed_value(key, d):
 
     try:
         return oe.maketype.create(d.getVar(key, True) or '', var_type, **flags)
-    except (TypeError, ValueError), exc:
+    except (TypeError, ValueError) as exc:
         bb.msg.fatal("Data", "%s: %s" % (key, str(exc)))