editfns.c (Ffloat_time): Doc fix.

src/ChangeLog

+2010-01-09  Eli Zaretskii  <eliz@gnu.org>
+
+	* editfns.c (Ffloat_time): Doc fix.
+
 2010-01-09  Jan Djärv  <jan.h.d@swipnet.se>
 	* xfns.c (Fx_create_frame): Don't create frame larger than display

src/editfns.c

@@ -1574,7 +1574,8 @@ instead of the current time.  The argument should have the form
 have the form (HIGH . LOW), but this is considered obsolete.
 
 WARNING: Since the result is floating point, it may not be exact.
-Do not use this function if precise time stamps are required.  */)
+If precise time stamps are required, use either `current-time',
+or (if you need time as a string) `format-time-string'.  */)
      (specified_time)
      Lisp_Object specified_time;
 {