Correct reraising of exception

When an exception was caught and rethrown, it should call 'raise'
without any arguments because it shows the place where an exception
occured initially instead of place where the exception re-raised.

Change-Id: I326dd8eaf221cbf3729beedaff81b416c59ae2e6

swift/common/manager.py

@@ -316,7 +316,7 @@ class Manager(object):
                         except OSError as e:
                             # PID died before kill_group can take action?
                             if e.errno != errno.ESRCH:
-                                raise e
+                                raise
                 else:
                     print(_('Waited %(kill_wait)s seconds for %(server)s '
                             'to die; giving up') %

swift/common/utils.py

@@ -1727,7 +1727,7 @@ def get_logger(conf, name=None, log_to_console=False, log_route=None,
         except socket.error as e:
             # Either /dev/log isn't a UNIX socket or it does not exist at all
             if e.errno not in [errno.ENOTSOCK, errno.ENOENT]:
-                raise e
+                raise
             handler = SysLogHandler(facility=facility)
     handler.setFormatter(formatter)
     logger.addHandler(handler)