Change exec_module to load_module

Fixes #2246

setuptools/command/bdist_egg.py

@@ -59,7 +59,7 @@ def write_stub(resource, pyfile):
             from importlib.machinery import ExtensionFileLoader
             __file__ = pkg_resources.resource_filename(__name__, %r)
             __loader__ = None; del __bootstrap__, __loader__
-            ExtensionFileLoader(__name__,__file__).exec_module()
+            ExtensionFileLoader(__name__,__file__).load_module()
         __bootstrap__()
         """).lstrip()
     with open(pyfile, 'w') as f:

setuptools/command/build_ext.py

@@ -268,7 +268,7 @@ class build_ext(_build_ext):
                     "     os.chdir(os.path.dirname(__file__))",
                     if_dl("     sys.setdlopenflags(dl.RTLD_NOW)"),
                     "     ExtensionFileLoader(__name__,",
-                    "                         __file__).exec_module()",
+                    "                         __file__).load_module()",
                     "   finally:",
                     if_dl("     sys.setdlopenflags(old_flags)"),
                     "     os.chdir(old_dir)",