safe_create_leading_directories: fix race that could give a false negative

diff --git a/Documentation/git-mergetool.txt b/Documentation/git-mergetool.txt
index 2a49de7cfe5188b531bc02f1115e253bfa10e0e0..d7207bd9b9bba59a0e1f97341fb77927026e1b52 100644 (file)
--- a/Documentation/git-mergetool.txt
+++ b/Documentation/git-mergetool.txt
@@ -27,9 +27,9 @@ OPTIONS
 -t <tool>::
 --tool=<tool>::
        Use the merge resolution program specified by <tool>.
-       Valid merge tools are:
-       araxis, bc3, diffuse, ecmerge, emerge, gvimdiff, kdiff3,
-       meld, opendiff, p4merge, tkdiff, tortoisemerge, vimdiff and xxdiff.
+       Valid values include emerge, gvimdiff, kdiff3,
+       meld, vimdiff, and tortoisemerge. Run `git mergetool --tool-help`
+       for the list of valid <tool> settings.
 +
 If a merge resolution program is not specified, 'git mergetool'
 will use the configuration variable `merge.tool`.  If the