Update TODO list.

Author: bmomjian

doc/TODO

@@ -1,6 +1,6 @@
 TODO list for PostgreSQL
 ========================
-Last updated:		Fri Feb 23 14:21:34 EST 2001
+Last updated:		Fri Feb 23 14:38:26 EST 2001
 
 Current maintainer:	Bruce Momjian (pgman@candle.pha.pa.us)
 
@@ -345,6 +345,7 @@ SOURCE CODE
 * Remove compile-time upper limit on number of backends (MAXBACKENDS) (Tom)
 * Make sure all block numbers are unsigned to increase maximum table size
 * Merge LockMethodCtl and LockMethodTable into one shared structure (Bruce)
+* HOLDER/HOLDERTAB reanme to PROCLOCKLINK/PROCLOCKLINKTAG (Tom)
 
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