(lunar-phase): Use calendar-mod instead of % so that it

works for negative phase numbers.

diff --git a/lisp/calendar/lunar.el b/lisp/calendar/lunar.el
index dd0501083b6e147ed93e162545483f9c66615c60..9fe7f6fa530775717ac08213b1994d46e906df0a 100644 (file)
--- a/lisp/calendar/lunar.el
+++ b/lisp/calendar/lunar.el
@@ -84,7 +84,7 @@
 Integer below INDEX/4 gives the lunation number, counting from Jan 1, 1900;
 remainder mod 4 gives the phase: 0 new moon, 1 first quarter, 2 full moon,
 3 last quarter."
-  (let* ((phase (% index 4))
+  (let* ((phase (calendar-mod index 4))
          (index (/ index 4.0))
          (time (/ index 1236.85))
          (date (+ (calendar-absolute-from-gregorian '(1 0.5 1900))