Add description:

>
>   By removing comments we prevent the confusion that commenting a line
>   returns a modified value to its default, which it does not.
>

doc/TODO

@@ -5,7 +5,7 @@ TODO list for PostgreSQL
 Bracketed items "[]" have more detail.
 
 Current maintainer:	Bruce Momjian (pgman@candle.pha.pa.us)
-Last updated:		Fri Aug  6 11:08:49 EDT 2004
+Last updated:		Fri Aug  6 11:12:36 EDT 2004
 
 The most recent version of this document can be viewed at the PostgreSQL web site, http://www.PostgreSQL.org.
 
@@ -80,6 +80,10 @@ Administration
   cleaned up properly.  A new signal is needed for safe termination.
 
 * Remove comments on postgresql.conf variables
+
+  By removing comments we prevent the confusion that commenting a line
+  returns a modified value to its default, which it does not.
+
 * Allow point-in-time recovery to archive partially filled write-ahead 
   logs