Two minor package updates dealing with the location of the doctest module

doc/CHANGES.rst

@@ -26,6 +26,8 @@ Features Added
   - zope.authentication = 3.7.1
   - zope.browser = 1.3
   - zope.cachedescriptors = 3.5.1
+  - zope.i18n = 3.7.3
+  - zope.i18nmessageid = 3.5.2
 
 Bugs Fixed
 ++++++++++

versions.cfg

@@ -111,8 +111,8 @@ zope.exceptions = 3.5.2
 zope.filerepresentation = 3.5.0
 zope.formlib = 3.7.0
 zope.hookable = 3.4.1
-zope.i18n = 3.7.2
-zope.i18nmessageid = 3.5.1
+zope.i18n = 3.7.3
+zope.i18nmessageid = 3.5.2
 zope.index = 3.6.0
 zope.interface = 3.5.3
 zope.intid = 3.7.0