Fix guidelines

trytond/tools/misc.py

@@ -52,14 +52,14 @@ def exec_pg_command_pipe(name, *args):
         cmd = '"' + prog + '" ' + ' '.join(args)
     else:
         cmd = prog + ' ' + ' '.join(args)
-    
+
     # if db_password is set in configuration we should pass
     # an environment variable PGPASSWORD to our subprocess
     # see libpg documentation
     child_env = dict(os.environ)
     if CONFIG['db_password']:
         child_env['PGPASSWORD'] = CONFIG['db_password']
-    pipe = subprocess.Popen(cmd, shell=True, 
+    pipe = subprocess.Popen(cmd, shell=True,
                             stdin=subprocess.PIPE, stdout=subprocess.PIPE,
                             close_fds=True,
                             env=child_env)