Fixed 'mkpath()' to normalize the path right off the bat -- cleans up   the code a bit and should make it work under Windows even with trailing   backslash. Fixed a couple of docstrings. Added comment about 'make_file()' possibly being redundant and unnecessary.
Fixed 'mkpath()' to normalize the path right off the bat -- cleans up
  the code a bit and should make it work under Windows even with trailing
  backslash.
Fixed a couple of docstrings.
Added comment about 'make_file()' possibly being redundant and unnecessary.

pypa/setuptools,pypa/setuptools,pypa/setuptools