PHPcs fixes

Problem/Motivation

FILE: /Users/joshahubbers/Sites/modules/piwik_pro/piwik_pro.module
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FOUND 3 ERRORS AFFECTING 3 LINES
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  1 | ERROR | [x] The PHP open tag must be followed by exactly one blank line
  8 | ERROR | [x] Additional blank lines found at end of doc comment
 46 | ERROR | [x] Expected one space after the comma, 2 found