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* src/system.h (emit_bug_reporting_address): New function.
* src/base64.c: Use it rather than a literal printf.
* src/basename.c, src/cat.c, src/chgrp.c, src/chmod.c:
* src/chown.c, src/chroot.c, src/cksum.c, src/comm.c, src/cp.c:
* src/csplit.c, src/cut.c, src/date.c, src/dd.c, src/df.c:
* src/dircolors.c, src/dirname.c, src/du.c, src/echo.c, src/env.c:
* src/expand.c, src/expr.c, src/factor.c, src/fmt.c, src/fold.c:
* src/head.c, src/hostid.c, src/hostname.c, src/id.c, src/install.c:
* src/join.c, src/kill.c, src/link.c, src/ln.c, src/logname.c:
* src/ls.c, src/md5sum.c, src/mkdir.c, src/mkfifo.c, src/mknod.c:
* src/mv.c, src/nice.c, src/nl.c, src/nohup.c, src/od.c:
* src/paste.c, src/pathchk.c, src/pinky.c, src/pr.c, src/printenv.c:
* src/printf.c, src/ptx.c, src/pwd.c, src/readlink.c, src/rm.c:
* src/rmdir.c, src/seq.c, src/setuidgid.c, src/shred.c, src/shuf.c:
* src/sleep.c, src/sort.c, src/split.c, src/stat.c, src/stty.c:
* src/su.c, src/sum.c, src/sync.c, src/system.h, src/tac.c:
* src/tail.c, src/tee.c, src/test.c, src/touch.c, src/tr.c:
* src/true.c, src/tsort.c, src/tty.c, src/uname.c, src/unexpand.c:
* src/uniq.c, src/unlink.c, src/uptime.c, src/users.c, src/wc.c:
* src/who.c, src/whoami.c, src/yes.c: Likewise.