[INFRA] tiny speedup of building PDF by moving re.compile() outside of a loop

[DimitriPapadopoulos]

5de7cfc / #774 changed:

bids-specification/pdf_build_src/process_markdowns.py

Line 447 in b45d99e

matches = re.findall("({{.*?}})", contents)

into:

bids-specification/pdf_build_src/process_markdowns.py

Line 448 in 5de7cfc

matches = re.findall(re.compile("({{.*?}})", re.DOTALL), contents)

If the intent was only to add DOTALL, I believe this would have been sufficient:

            matches = re.findall("({{.*?}})", contents, re.DOTALL)

If the intent was to use re.compile() for efficiency, then re.compile() must be moved outside the loop.