Fix a typo that prevents uploading egg index.

src/zc/buildout/easy_install.py

@@ -211,7 +211,7 @@ class AllowHostsPackageIndex(setuptools.package_index.PackageIndex):
                 and getattr(f, 'code', None) != 404:
                 upload_index_network_cached(
                     nc.get('upload-dir-url'),
-                    nc.get('upload-cacheurl'),
+                    nc.get('upload-cache-url'),
                     url, base, requirement, page, logger,
                     nc.get('signature-private-key-file'),
                     nc.get('shacache-ca-file'),