Cleanup

[Qubitium]

  - Compiled search() on \bfoo\b: 3.462 ms -> 2.346 ms per 3000 calls, about 32% faster.
  - Compiled match() on \bfoo\b: 3.606 ms -> 2.363 ms, about 34% faster.
  - Compiled findall() on \bfoo\b: 5.203 ms -> 3.688 ms, about 29% faster.
  - Module search() on \bfoo\b: 7.260 ms -> 5.748 ms, about 21% faster.
  - Compiled search() on (?P<word>[A-Za-z]+): 5.824 ms -> 3.392 ms, about 42% faster.