/usr/share/doc/texlive-doc/fonts/fontinst/test/v1915testmap.tex is in texlive-font-utils 2013.20140215-2.
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 7 8 9 | \input finstmsc.sty
\adddriver{pltotf}{v1915test.sh}
\input v1914test.recs
\donedrivers
\setstr{TFMfileprefix}{:a:b:c:}
\adddriver{pltotf}{v1915test.sh2}
\input v1913test.recs
\donedrivers
\bye
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