The Makefile has:
USES= python shebangfix ssl
$ portlint -AC
WARN: Makefile: extra item placed in the USES/USE_x section, for example, "SHEBANG_FILES".
0 fatal errors and 1 warning found.
But the Makefile is perfectly correct wrt https://www.freebsd.org/doc/en/books/porters-handbook/porting-order-uses.html as SHEBANG_FILES is a variable related to USES=shebangfix.
I have removed the check as this will be too difficult to track since these variables will always be changing.
Check removed in 2.18.10.