scripts: sort lytfs output before further processing

Sort the output of the lytfs program before further processing—upstream noted
that they do not remember tacking determinism onto their generator (although it
does look deterministic), therefore it is on us to ensure we don't get flaky
runs that just re-order some lines, instead of actually adding new functions.

Signed-off-by: Luca Zeuch <l-zeuch@email.de>

scripts/gen_funcs.py

@@ -41,6 +41,7 @@ def main():
     with open(file, "rt") as fin:
         funcs = [line.strip() for line in fin]
 
+    funcs.sort()
     code = gen_code(funcs)
 
     outfile = 'syntax/yagpdbcc/functions.vim'