Coding standards clean-up of admin template.php. No logic changes. Re…

…moval of multiple spaces, addition of whitespace, addition of ;, s/"/'/g where appropriate, case changes of constants, removal of $output = '..'; echo $output.

git-svn-id: https://develop.svn.wordpress.org/trunk@15278 602fd350-edb4-49c9-b593-d223f7449a82