olevba: fix sys.argv[1] using xlmdeobfuscator

[minanokawari1124]

When I parse xlm macro from external software using olevba, I found a bug in the following line.

oletools/oletools/olevba.py

Lines 3424 to 3430 in 412ee36

	result = xlmdeobfuscator.process_file(file=sys.argv[1],
	noninteractive=True,
	noindent=True,
	# output_formula_format='CELL:[[CELL_ADDR]], [[INT-FORMULA]]',
	return_deobfuscated=True,
	timeout=30,
	)

In order to make it available from external software, I changed the call to be the same as line 3409:

oletools/oletools/olevba.py

Line 3409 in 412ee36

result = xlmdeobfuscator.process_file(file=self.filename,

[decalage2]

Thanks a lot for spotting this bug!