/usr/share/openscad/buildtestresults/echotest-output/ is in openscad-testing-data 2013.01+dfsg-2.2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/openscad/buildtestresults/echotest-output/builtin-tests-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/dim-all-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/echo-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/echo-tests-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/escape-test-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/inf-tests-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/len-tests-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/parser-tests-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/recursion-tests-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/search-tests-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/string-indexing-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/string-test-actual.txt
/usr/share/openscad/buildtestresults/echotest-output/vector-values-actual.txt