Merge from 3.2 (issue #11814, issue #8428)

diff --cc Misc/NEWS
index 9d6307469c6b43c6500ba018734f396618ec9434,e0e6bd222a0dfe75697dac79922608fad1a2d0a1..545307a4af7986efadb2461172ca3d4614a73413
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -98,12 -53,12 +98,18 @@@ Core and Builtin
  Library
  -------
  
+ - Issue #11814: Fix likely typo in multiprocessing.Pool._terminate().
+ 
+ - Issue #8428: Fix a race condition in multiprocessing.Pool when terminating
+   worker processes: new processes would be spawned while the pool is being
+   shut down.  Patch by Charles-François Natali.
+ 
 +- Issue #2650: re.escape() no longer escapes the '_'.
 +
 +- Issue #11757: select.select() now raises ValueError when a negative timeout
 +  is passed (previously, a select.error with EINVAL would be raised).  Patch
 +  by Charles-François Natali.
 +
  - Issue #7311: fix html.parser to accept non-ASCII attribute values.
  
  - Issue #11605: email.parser.BytesFeedParser was incorrectly converting multipart