/etc/solr/conf/lang/contractions_ca.txt is in solr-common 3.6.2+dfsg-10+deb9u2.
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 | # Set of Catalan contractions for ElisionFilter
# TODO: load this as a resource from the analyzer and sync it in build.xml
d
l
m
n
s
t
|