Update cvs command example to show diff -rBASE.

src/tools/pgcvslog

 #!/bin/sh
 
-# $PostgreSQL: pgsql/src/tools/pgcvslog,v 1.29 2006/03/15 03:24:17 momjian Exp $
+# $PostgreSQL: pgsql/src/tools/pgcvslog,v 1.30 2006/05/31 10:24:29 momjian Exp $
 
 # This utility is used to generate a compact list of changes
 # for each release, bjm 2000-02-22
@@ -10,13 +10,16 @@
 # all branches:	
 # cvs log -d '>1999-06-14 00:00:00 GMT' . > log
 #
-# head:
+# current directory branch:
+# cvs log -d'>2000-05-29 00:00:00 GMT' -rBASE .
+#
+# HEAD:
 # cvs log -d'>2000-05-29 00:00:00 GMT' -b .
 # branch:
 # cvs log -d'>2000-05-29 00:00:00 GMT' -rREL8_0_STABLE .
 #
 # date range
-# cvs log -d'2005-05-08<2005-05-29' -b .
+# cvs log -d'2005-05-08<2005-05-29' -rBASE .
 #
 # To find branch time, look for "branches:" tag in CVS commit logs
 # e.g. "branches:  1.398.4;" matches "REL8_0_STABLE: 1.398.0.4".