postinst is in subversion 1.9.3-2ubuntu1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | #!/bin/sh
set -e
dpkg-maintscript-helper rm_conffile /etc/emacs/site-start.d/50psvn.el 1.7.13-1~ -- "$@"
dpkg-maintscript-helper rm_conffile /etc/bash_completion.d/subversion 1.9.0~rc1-2~ -- "$@"
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