re detailed trace messages from the "trace2" library.
Output from <code>GIT_TRACE2</code> is a simple text-based format for human
readability.</p>
<div class="paragraph">
<p>If this variable is set to "1", "2" or "true" (comparison
is case insensitive), trace messages will be printed to
stderr.</p>
</div>
<div class="paragraph">
<p>If the variable is set to an integer value greater than 2
and lower than 10 (strictly) then Git will interpret this
value as an open file descriptor and will try to write the
tra