tweeper: fix style issues found by Coder Sniffer

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FOUND 3 ERRORS AFFECTING 2 LINES
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 1 | ERROR | [x] Missing file doc comment
 4 | ERROR | [x] "require" is a statement not a function; no
   |       |     parentheses are required
 4 | ERROR | [x] Language constructs must be followed by a single
   |       |     space; expected "require (" but found "require("