Document gc.<pattern>.reflogexpire variables

diff --git a/Documentation/git-difftool.txt b/Documentation/git-difftool.txt
index 96a6c51a4b83207fa23fc8f09cb02f57b1085ea4..8e9aed67d7f68c0234ee47dc147736bf3b8e5c4f 100644 (file)
--- a/Documentation/git-difftool.txt
+++ b/Documentation/git-difftool.txt
@@ -31,7 +31,7 @@ OPTIONS
        Use the diff tool specified by <tool>.
        Valid merge tools are:
        kdiff3, kompare, tkdiff, meld, xxdiff, emerge, vimdiff, gvimdiff,
-       ecmerge, diffuse, opendiff and araxis.
+       ecmerge, diffuse, opendiff, p4merge and araxis.
 +
 If a diff tool is not specified, 'git-difftool'
 will use the configuration variable `diff.tool`.  If the