Bug#1030703: imagemagick: `apt-get remove imagemagick` fails

[Roland van Laar]

Package: imagemagick
Version: 8:6.9.11.60+dfsg-1.3
Severity: important

Dear Maintainer,

* What led up to the situation?
VScode devcontainer python:3 tries
to uninstall it.
* What exactly did you do (or not do) that was effective (or
run apt-get purge -u imagemagick
ineffective)?
* What was the outcome of this action?
> [5/5] RUN apt-get purge -y imagemagick:
#0 0.252 Reading package lists...
#0 0.509 Building dependency tree...
#0 0.559 Reading state information...
#0 0.615 The following packages were automatically installed and are no longer required:
#0 0.615 dbus fontconfig fontconfig-config fonts-dejavu-core fonts-droid-fallback
#0 0.615 fonts-noto-mono fonts-urw-base35 ghostscript gsfonts hicolor-icon-theme
#0 0.615 imagemagick-6-common imagemagick-6.q16 libaom0 libapparmor1 libavahi-client3
#0 0.615 libavahi-common-data libavahi-common3 libbrotli1 libbsd0 libcairo2 libcups2
#0 0.615 libdatrie1 libdav1d4 libdbus-1-3 libde265-0 libdeflate0 libdjvulibre-text
#0 0.615 libdjvulibre21 libexpat1 libfftw3-double3 libfontconfig1 libfreetype6
#0 0.615 libfribidi0 libglib2.0-0 libglib2.0-data libgomp1 libgraphite2-3 libgs9
#0 0.615 libgs9-common libharfbuzz0b libheif1 libicu67 libidn11 libijs-0.35
#0 0.615 libilmbase25 libjbig0 libjbig2dec0 libjpeg62-turbo libjxr-tools libjxr0
#0 0.615 liblcms2-2 liblqr-1-0 libltdl7 libmagickcore-6.q16-6
#0 0.615 libmagickcore-6.q16-6-extra libmagickwand-6.q16-6 libmd0 libnetpbm10
#0 0.615 libnuma1 libopenexr25 libopenjp2-7 libpango-1.0-0 libpangocairo-1.0-0
#0 0.615 libpangoft2-1.0-0 libpaper-utils libpaper1 libpixman-1-0 libpng16-16
#0 0.615 libthai-data libthai0 libtiff5 libwebp6 libwebpdemux2 libwebpmux3
#0 0.615 libwmf0.2-7 libx11-6 libx11-data libx265-192 libxau6 libxcb-render0
#0 0.615 libxcb-shm0 libxcb1 libxdmcp6 libxext6 libxml2 libxrender1 netpbm
#0 0.615 poppler-data sensible-utils shared-mime-info ucf xdg-user-dirs
#0 0.615 Use 'apt autoremove' to remove them.
#0 0.634 The following packages will be REMOVED:
#0 0.634 imagemagick*
#0 0.756 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
#0 0.756 After this operation, 225 kB disk space will be freed.
(Reading database ... 10525 files and directories currently installed.)
#0 0.775 Removing imagemagick (8:6.9.11.60+dfsg-1.3) ...
#0 0.786 dpkg: error processing package imagemagick (--remove):
#0 0.786 cannot remove '/usr/share/doc/imagemagick': Invalid argument
#0 0.786 dpkg: too many errors, stopping
#0 0.792 Errors were encountered while processing:
#0 0.792 imagemagick
#0 0.792 Processing was halted because there were too many errors.
#0 0.808 E: Sub-process /usr/bin/dpkg returned an error code (1)

* What outcome did you expect instead?
A 0 exit code

Here's a sample docker file to test it:
```
FROM debian:bullseye

RUN apt-get update
RUN apt-get upgrade

RUN apt-get install -y imagemagick

RUN apt-get purge -y imagemagick
```