martine/ninja — pull request #301 by nico (2012-05-08 15:46:07+00:00)
Title: Don't write ninja log header to log on every build on Windows.

Problem discovery, explanation, and solution proposal all by @sgraham , I just typed it up.

The included test case fails without the source change on windows, due to the log file containing two "# ninja log v4\n" lines.