packet-dcerpc-fileexp.c: Add editor modelines; reformat various (including hf[] entries).

Change-Id: I0d49f4c1c3a3960c3fdc9b1cd411c73097829c09
Reviewed-on: https://code.wireshark.org/review/4440
Reviewed-by: Bill Meier <wmeier@newsguy.com>