Only scan comments from bdf font files

[pombredanne]

https://www.x.org/releases/individual/font/font-isas-misc-1.0.3.tar.gz

Extracting archives...
Extracting done.
Setup plugins...
Collect file inventory...
Scan files for: info, licenses, copyrights, packages with 3 process(es)...
Scanning done.
Some files failed to scan properly:
Path: tmpuwl47mwn/font-isas-misc-1.0.3.tar.gz-extract/font-isas-misc-1.0.3/gb16fs.bdf
Path: tmpuwl47mwn/font-isas-misc-1.0.3.tar.gz-extract/font-isas-misc-1.0.3/gb16st.bdf
Path: tmpuwl47mwn/font-isas-misc-1.0.3.tar.gz-extract/font-isas-misc-1.0.3/gb24st.bdf
Summary:        info, copyrights, licenses, packages with 3 process(es)
Errors count:   0
Scan Speed:     0.10 files/sec. 34.38 KB/sec.
Initial counts: 20 resource(s): 17 file(s) and 3 directorie(s)
Final counts:   20 resource(s): 17 file(s) and 3 directorie(s) for 5.68 MB
Timings:
  setup_scan:licenses: 3.01s
  setup: 3.01s
  scan: 169.14s
  post-scan:package-root: 0.59s
  post-scan:copyright-summary: 0.33s
  post-scan: 0.92s
  total: 173.13s

Here the files texts should not be scanned and are quite large except for their comments.
The types are:

gb16fs.bdf:   X11 BDF font, ASCII text
gb16st.bdf:   X11 BDF font, ASCII text
gb24st.bdf:   X11 BDF font, ASCII text

STARTFONT 2.1
COMMENT
COMMENT  Copyright (C) 1988  The Institute of Software, Academia Sinica.
COMMENT
COMMENT  Correspondence Address:  P.O.Box 8718, Beijing, China 100080.
COMMENT
COMMENT  Permission to use, copy, modify, and distribute this software and
COMMENT  its documentation for any purpose and without fee is hereby granted,
COMMENT  provided that the above copyright notices appear in all copies and
COMMENT  that both those copyright notices and this permission notice appear
COMMENT  in supporting documentation, and that the name of "the Institute of
COMMENT  Software, Academia Sinica" not be used in advertising or publicity
COMMENT  pertaining to distribution of the software without specific, written
COMMENT  prior permission.  The Institute of Software, Academia Sinica,
COMMENT  makes no representations about the suitability of this software
COMMENT  for any purpose.  It is provided "as is" without express or
COMMENT  implied warranty.
COMMENT
COMMENT  THE INSTITUTE OF SOFTWARE, ACADEMIA SINICA, DISCLAIMS ALL WARRANTIES
COMMENT  WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
COMMENT  MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THE INSTITUTE OF
COMMENT  SOFTWARE, ACADEMIA SINICA, BE LIABLE FOR ANY SPECIAL, INDIRECT OR
COMMENT  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
COMMENT  LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
COMMENT  NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
COMMENT  WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
COMMENT
COMMENT
COMMENT  This is a hanzi guobiao (GB) code 16x16 fang song ti font.
COMMENT  GB stands for the National Standard GB2312-80 of
COMMENT  the People's Republic of China.
COMMENT
COMMENT  The font is in GL encoding, that is, the most signicant bit in
COMMENT  the 2-byte hanzi code is both '0'.
COMMENT
FONT -ISAS-Fangsong ti-Medium-R-Normal--16-160-72-72-c-160-GB2312.1980-0
SIZE 16 72 72