Code cleanup (#1640)

- Replaced time.Now().Sub() with time.Since()
- Replaced unnecessary string/byte slice conversions
- Removed obsolete return and value assignment in range loop

1 files changed, 1 insertions, 1 deletions

diff --git a/src/history.go b/src/history.go
index 4aa87fc8..45728d40 100644
--- a/src/history.go
+++ b/src/history.go
@@ -59,7 +59,7 @@ func (h *History) append(line string) error {
 
 	lines := append(h.lines[:len(h.lines)-1], line)
 	if len(lines) > h.maxSize {
-		lines = lines[len(lines)-h.maxSize : len(lines)]
+		lines = lines[len(lines)-h.maxSize:]
 	}
 	h.lines = append(lines, "")
 	return ioutil.WriteFile(h.path, []byte(strings.Join(h.lines, "\n")), 0600)