Update TODO list.

Author: bmomjian

doc/TODO

@@ -1,6 +1,6 @@
 TODO list for PostgreSQL
 ========================
-Last updated:		Tue Mar 20 14:56:07 EST 2001
+Last updated:		Tue Mar 20 15:30:50 EST 2001
 
 Current maintainer:	Bruce Momjian (pgman@candle.pha.pa.us)
 
@@ -272,6 +272,7 @@ PERFORMANCE
   (Vadim)
 * Delay fsync() when other backends are about to commit too [fsync]
 	* Determine optimal commit_delay value
+* Determine optimal fdatasync/fsync, O_SYNC/O_DSYNC options
 
 INDEXES