bunch more __all__ lists
also modified check_all function to suppress all warnings since they aren't
relevant to what this test is doing (allows quiet checking of regsub, for
instance)
diff --git a/Lib/shutil.py b/Lib/shutil.py
index e053917..6e3a276 100644
--- a/Lib/shutil.py
+++ b/Lib/shutil.py
@@ -8,6 +8,8 @@
 import sys
 import stat
 
+__all__ = ["copyfileobj","copyfile","copymode","copystat","copy","copy2",
+           "copytree","rmtree"]
 
 def copyfileobj(fsrc, fdst, length=16*1024):
     """copy data from file-like object fsrc to file-like object fdst"""