Made `MultiValueDict`'s `get` and `getlist` method docstrings more descriptive.
Made `MultiValueDict`'s `get` and `getlist` method docstrings more descriptive.


git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@6714 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django