/usr/share/go-1.7/test/deferprint.out is in golang-1.7-src 1.7.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | printing: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
42 true false true +1.500000e+000 world 0x0 [0/0]0x0 0x0 0x0 255
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