Fix grammar.

Doc/library/threading.rst

@@ -14,7 +14,7 @@ The :mod:`dummy_threading` module is provided for situations where
 
 .. note::
 
-   Some name ``camelCase`` names have been converted to their underscored
+   Some ``camelCase`` names have been converted to their underscored
    equivalents. Others have been replaced by properties.  Using the old methods
    in 2.6 will trigger a :exc:`DeprecationWarning` when Python is run with the
    :option:`-3` flag and a full :exc:`DeprecationWarning` in 3.0.  The old names

Misc/NEWS

@@ -669,8 +669,8 @@ Library
 - The bundled OSX-specific copy of libbffi is now in sync with the version
   shipped with PyObjC 2.0 and includes support for x86_64 and ppc64 platforms.
 
-- The threading module gained alias for names that will be removed in the 3.x
-  series.
+- The threading module gained aliases for names that will be removed in the
+  3.x series.
 
 Build
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