Apply php-cs-fixer fixers

- braces
- function_declaration
- lowercase_keywords
- method_argument_space
- no_spaces_inside_parenthesis
- no_trailing_whitespace
- no_trailing_whitespace_in_comment
- single_blank_line_at_eof

tests/MinifyCacheMemcacheTest.php

@@ -45,4 +45,3 @@ class MinifyCacheMemcacheTest extends TestCase
         $this->assertTestCache($cache, $id, $data);
     }
 }
-