Filter new pylint warning W0707

A new warning introduced in pylint 2.6, W0707 raise-missing-from, is
causing tox and zuul pylint tests to fail. This update filters the new
warning.

Change-Id: Ifa4daf575d3b993d2fe65d895e5c0cd40a0cbcae
Closes-Bug: 1893988
Signed-off-by: Don Penney <don.penney@windriver.com>
(cherry picked from commit a944973da4f0a18e06ee26b5132d03e007e3e1d3)

pylint.rc

@@ -46,11 +46,12 @@ load-plugins=
 # W0622 redefined-builtin
 # W0702 bare-except
 # W0703 broad except warning
+# W0707 raise-missing-from
 # W1201 logging-not-lazy
 # W1401 anomalous-backslash-in-string
 disable=C, R, E0203, E0602, E1101, E1205, fixme,
         W0102, W0105, W0106, W0201, W0212, W0221, W0231, W0235,
-        W0611, W0612, W0613, W0621, W0622, W0702, W0703, W1201, W1401
+        W0611, W0612, W0613, W0621, W0622, W0702, W0703, W0707, W1201, W1401
 
 
 [REPORTS]