git-p4: add failing test for P4EDITOR handling

diff --git a/Documentation/git-check-ignore.txt b/Documentation/git-check-ignore.txt
index d2df487aa20a89264afee08bcdddf681d7701fda..788a0115805214f4169c50279d94cd31e5f0becc 100644 (file)
--- a/Documentation/git-check-ignore.txt
+++ b/Documentation/git-check-ignore.txt
@@ -21,6 +21,9 @@ the exclude mechanism) that decides if the pathname is excluded or
 included.  Later patterns within a file take precedence over earlier
 ones.
 
+By default, tracked files are not shown at all since they are not
+subject to exclude rules; but see `--no-index'.
+
 OPTIONS
 -------
 -q, --quiet::
@@ -45,6 +48,13 @@ OPTIONS
        not be possible to distinguish between paths which match a
        pattern and those which don't.
 
+--no-index::
+       Don't look in the index when undertaking the checks. This can
+       be used to debug why a path became tracked by e.g. `git add .`
+       and was not ignored by the rules as expected by the user or when
+       developing patterns including negation to match a path previously
+       added with `git add -f`.
+
 OUTPUT
 ------