mandoc: O1.in:11:6: WARNING: invalid escape sequence argument: \O5
mandoc: O1.in:12:7: WARNING: invalid escape sequence argument: \O(52
mandoc: O1.in:13:7: UNSUPP: unsupported escape sequence: \O[5dummy]
mandoc: O1.in:14:6: WARNING: invalid escape sequence argument: \O6
mandoc: O1.in:15:6: UNSUPP: unsupported escape sequence: \O0