This patch finishes bringing builtin_functions into compliance with
python's PEP8 standard with a a few exceptions, as marked below with
line number and explanation:

141-153: Leave a table in tabluar spacing per Chad
1077-1110: lists with either positive or negative numbers, use a blank
	   space on for positive numbers so that they line up nicely
	   with the negative numbers

v3: - revert some false positives generated by an old version of the
      pep8 tool

Signed-off-by: Dylan Baker <baker.dylan.c@gmail.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>