bitbake: lib: Use modern expcetion syntax

(Bitbake rev: a4a37b6a83faa62f61433122c4583e93e64f7372)

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

bitbake/lib/bb/process.py

@@ -85,7 +85,7 @@ def _logged_communicate(pipe, log, input):
             rlist = rin
             try:
                 r,w,e = select.select (rlist, [], [])
-            except OSError, e:
+            except OSError as e:
                 if e.errno != errno.EINTR:
                     raise