Merge branch 'jc/maint-filter-branch-epoch-date' into maint

In 1.7.9 era, we taught "git rebase" about the raw timestamp format
but we did not teach the same trick to "filter-branch", which rolled
a similar logic on its own.

* jc/maint-filter-branch-epoch-date:
  t7003: add test to filter a branch with a commit at epoch
  date.c: Fix off by one error in object-header date parsing
  filter-branch: do not forget the '@' prefix to force git-timestamp

1 files changed, 1 insertions, 1 deletions

diff --git a/date.c b/date.c
index 1fdcf7c6ea..57331ed406 100644
--- a/date.c
+++ b/date.c
@@ -624,7 +624,7 @@ static int match_object_header_date(const char *date, unsigned long *timestamp,
 	unsigned long stamp;
 	int ofs;
 
-	if (*date < '0' || '9' <= *date)
+	if (*date < '0' || '9' < *date)
 		return -1;
 	stamp = strtoul(date, &end, 10);
 	if (*end != ' ' || stamp == ULONG_MAX || (end[1] != '+' && end[1] != '-'))