fix: Strip white spaces

qcodes/loops.py

@@ -890,7 +890,7 @@ def _run_loop(self, first_delay=0, action_indices=(),
             # after the first setpoint, delay reverts to the loop delay
             delay = self.delay
 
-            # now check for a background task and execute it if it's 
+            # now check for a background task and execute it if it's
             # been long enough since the last time
             # don't let exceptions in the background task interrupt
             # the loop
@@ -913,7 +913,7 @@ def _run_loop(self, first_delay=0, action_indices=(),
             tprint('loop %s DONE: %d/%d (%.1f [s])' % (
                    self.sweep_values.name, i + 1, imax, time.time() - t0),
                    dt=-1, tag='outerloop')
-                   
+
         # run the background task one last time to catch the last setpoint(s)
         if self.bg_task is not None:
             self.bg_task()