someone on the #svn IRC channel, some time ago
r1026105 | stsp | 2010-10-21 14:07:54 -0500 (Thu, 21 Oct 2010)
[ Note from the future: This commit was reverted in r1026270 because
it made the buildbots fail ]
(merge_text_file): Don't leak temporary file RESULT_TARGET.
E.g. when a text conflict happened during an update, and the user
chose 'theirs-full', a file containing the diff3 merge result with
conflict markers was left over in .svn/tmp/ directory.
Found by: someone on the #svn IRC channel, some time ago