Package: perl-doc Version: 5.26.0-5 Severity: normal Hi! If you use perldoc on anything that includes emphasis (for example on "perldoc -f exec" and many other entries), they show as "ESC[4mfooESC[0m".
pstree shows: bash───perldoc───sh───sensible-pager───pager symlinks go: /usr/bin/pager → /etc/alternatives/pager → /bin/less This is same as: $ printf 'abc\e[4mdef\e[0mghi\n' >foo $ less foo as compared to: $ less -R foo or even: $ cat foo I don't have $PAGER set, nor have I ever messed with pager settings. Using SGR codes instead of the ancient printer-like backspace hack is commendable and much nicer, but you'd have to somehow request the pager to enable their recognition. Meow! -- System Information: Debian Release: buster/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing'), (150, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.13.0-rc4-debug-00052-gbdd287aecdf1 (SMP w/6 CPU cores) Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages perl-doc depends on: ii perl 5.26.0-5 perl-doc recommends no packages. Versions of packages perl-doc suggests: ii groff-base 1.22.3-9 ii man-db [man-browser] 2.7.6.1-2 -- no debconf information