Fix lintian issue "W: libjpeg-turbo-progs: groff-message...

Fix lintian issue "W: libjpeg-turbo-progs: groff-message usr/share/man/man1/jpegtran.1.gz (line 1) 170: warning: macro 'f'' not defined"

Gbp-Pq: 1001_fix-groff-warning-macro-f-not-defined.patch.