[fixup] Fix zc.recipe.egg testing framework

Fixup "[feat] zc.recipe.egg: Improve on the fly patches."

`zc.buildout.testing.easy_install_deprecated` should have been
`zc.buildout.testing.easyinstall_deprecated`.

zc.recipe.egg_/src/zc/recipe/egg/tests.py

@@ -116,7 +116,7 @@ def test_suite():
                zc.buildout.tests.normalize_S,
                zc.buildout.testing.not_found,
                zc.buildout.testing.root_logger_messages,
-               zc.buildout.testing.easy_install_deprecated,
+               zc.buildout.testing.easyinstall_deprecated,
                (re.compile(r'[d-]  zc.buildout(-\S+)?[.]egg(-link)?'),
                 'zc.buildout.egg'),
                (re.compile(r'[d-]  setuptools-[^-]+-'), 'setuptools-X-'),