Merge pull request coreos#345 from usabilla/seek-tail-previous

sdjournal: SeekTail should be followed by Previous, not Next

Author: Luca Bruno

sdjournal/journal.go

@@ -946,7 +946,7 @@ func (j *Journal) SeekHead() error {
 }
 
 // SeekTail may be used to seek to the end of the journal, i.e. the most recent
-// available entry. This call must be followed by a call to Next before any
+// available entry. This call must be followed by a call to Previous before any
 // call to Get* will return data about the last element.
 func (j *Journal) SeekTail() error {
 	sd_journal_seek_tail, err := getFunction("sd_journal_seek_tail")

sdjournal/journal_test.go

@@ -96,8 +96,8 @@ func TestJournalWait(t *testing.T) {
 	if err := j.SeekTail(); err != nil {
 		t.Fatalf("Error seeking to tail: %s", err)
 	}
-	if _, err := j.Next(); err != nil {
-		t.Fatalf("Error retrieving next entry: %s", err)
+	if _, err := j.Previous(); err != nil {
+		t.Fatalf("Error retrieving previous entry: %s", err)
 	}
 
 	var t1, t2 time.Time