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

Coding standards clean-up of admin template.php. No logic changes. Removal 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://core.svn.wordpress.org/trunk@15278 1a063a9b-81f0-0310-95a4-ce76da25c4cd