time.1, atexit.3, bsearch.3, dlopen.3, envz_add.3, errno.3, fmtmsg.3, getgrent_r...

time.1, atexit.3, bsearch.3, dlopen.3, envz_add.3, errno.3, fmtmsg.3, getgrent_r.3, getline.3, getmntent.3, getnameinfo.3, getpass.3, getpwent_r.3, gets.3, isalpha.3, printf.3, puts.3, recno.3, scandir.3, stdarg.3, sysconf.3, termios.3, wordexp.3, null.4, core.5, dir_colors.5, issue.5, proc.5, termcap.5, utmp.5, ascii.7, cpuset.7, glob.7, man-pages.7, man.7, mdoc.7, mdoc.samples.7, regex.7: Global fix: use \\ rather than \e for literal backslash

Reported-by: Jan Engelhardt <jengelh@inai.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>