/usr/share/texlive/texmf-dist/metapost/support/trchars.adj is in texlive-metapost 2014.20141024-2+deb8u1.
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 10 11 12 13 14 15 | S
96 -.530 0
165 -.015 -.075
214 -.010 0
231 -.060 -.170
233 .201 0
235 .201 0
238 .002 0
242 .098 -.050
249 -.103 0
250 -.085 -.125
251 -.103 0
S1
95 0 .080
177 .014 .090
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