/usr/share/texmf-texlive/makeindex/bibarts/gbibarts.ist is in texlive-bibtex-extra 2009-10ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | quote '='
delim_0 " "
delim_1 " "
delim_2 " "
delim_n "\\komma "
delim_t " "
|