[PATCH] Fix git-runstatus for repositories containing a file named HEAD

[Rocco Rutte <pdmef@gmx.net>]

The wt_status_print_updated() and wt_status_print_untracked() routines
call setup_revisions() with 'HEAD' being the reference to the tip of the
current branch. However, setup_revisions() gets confused if the branch
also contains a file named 'HEAD' resulting in a fatal error.

The fix is to append the '--' delimiter to the setup_revisions() call so
that it knows for sure that the 'HEAD' argument is a revision and not a
filename.

Signed-off-by: Rocco Rutte <pdmef@gmx.net>
---
 wt-status.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/wt-status.c b/wt-status.c
index 7dd6857..7c0dbdb 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -154,10 +154,10 @@ void wt_status_print_initial(struct wt_s
 static void wt_status_print_updated(struct wt_status *s)
 {
 	struct rev_info rev;
-	const char *argv[] = { NULL, NULL, NULL };
+	const char *argv[] = { NULL, NULL, "--", NULL };
 	argv[1] = s->reference;
 	init_revisions(&rev, NULL);
-	setup_revisions(2, argv, &rev, NULL);
+	setup_revisions(3, argv, &rev, NULL);
 	rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 	rev.diffopt.format_callback = wt_status_print_updated_cb;
 	rev.diffopt.format_callback_data = s;
@@ -225,10 +225,10 @@ static void wt_status_print_untracked(co
 static void wt_status_print_verbose(struct wt_status *s)
 {
 	struct rev_info rev;
-	const char *argv[] = { NULL, NULL, NULL };
+	const char *argv[] = { NULL, NULL, "--", NULL };
 	argv[1] = s->reference;
 	init_revisions(&rev, NULL);
-	setup_revisions(2, argv, &rev, NULL);
+	setup_revisions(3, argv, &rev, NULL);
 	rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 	rev.diffopt.detect_rename = 1;
 	run_diff_index(&rev, 1);
-- 
1.4.3.4.g50f39-dirty