Bug#435201: htdig: cron.daily script fails noisily when package is not installed

[Ted Percival <ted@midg3t.net>]

Package: htdig
Version: 1:3.2.0b6-3.1
Severity: normal

I removed the htdig and its lockfile-progs dependency but its cron
script remains (as it is a conf file), however every day I get an email
saying:
  /etc/cron.daily/htdig:
  /etc/cron.daily/htdig: 6: lockfile-create: not found

Policy 9.5 (Cron jobs) suggests that "crontab entries in these
directories [/etc/cron.*] should check if all necessary programs are
installed before they try to execute them".


-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.21-2-686 (SMP w/2 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages htdig depends on:
ii  debconf [debconf-2.0]   1.5.13           Debian configuration management sy
ii  libc6                   2.6-2            GNU C Library: Shared libraries
ii  libgcc1                 1:4.2-20070712-1 GCC support library
ii  libstdc++6              4.2-20070712-1   The GNU Standard C++ Library v3
pn  lockfile-progs          <none>           (no description available)
ii  perl                    5.8.8-7          Larry Wall's Practical Extraction 
ii  zlib1g                  1:1.2.3.3.dfsg-5 compression library - runtime

htdig recommends no packages.