Fix API change in boost::unit_test::unit_test_log_formatter

[LukasWoodtli]

Summary

There is an API change in unit_test_log_formatter from Boost.Test.

Details

boost::unit_test::unit_test_log_formatter::log_build_info now expects a second argument.

Motivation and Context

There is now a preprocessor define to support building also with Boost.Test from 1.70.

How Has This Been Tested?

Manual build with Boost 1.71. There's no package for Boost >= for trusty (as used on travis).

Types of changes

• Bug fix (non-breaking change which fixes an issue).

Checklist:

• It is my own work, its copyright is implicitly assigned to the project and no substantial part of it has been copied from other sources (including Stack Overflow). In rare occasions this is acceptable, like in CMake modules where the original copyright information should be kept.
• I'm using the same code standards as the existing code (indentation, spacing, variable naming, ...).
• I've added tests for my code.
• I have verified whether my change requires changes to the documentation
• My change either requires no documentation change or I've updated the documentation accordingly.
• My branch has been rebased to master, keeping only relevant commits.

[coveralls]

Coverage remained the same at 62.47% when pulling 3af03a8 on LukasWoodtli:BoostTestApiChange into dd424c1 on cucumber:master.

[LukasWoodtli]

Just seen that this is a douplicate of #225.

[jermus67]

Fixed with pull request #239