Remove cvs keywords from all files.

src/backend/optimizer/prep/Makefile

@@ -4,7 +4,7 @@
 #    Makefile for optimizer/prep
 #
 # IDENTIFICATION
-#    $PostgreSQL: pgsql/src/backend/optimizer/prep/Makefile,v 1.17 2008/02/19 10:30:07 petere Exp $
+#    src/backend/optimizer/prep/Makefile
 #
 #-------------------------------------------------------------------------
 

src/backend/optimizer/prep/prepjointree.c

@@ -16,7 +16,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/optimizer/prep/prepjointree.c,v 1.74 2010/08/27 20:30:08 petere Exp $
+ *	  src/backend/optimizer/prep/prepjointree.c
  *
  *-------------------------------------------------------------------------
  */

src/backend/optimizer/prep/prepqual.c

@@ -25,7 +25,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/optimizer/prep/prepqual.c,v 1.61 2010/01/02 16:57:47 momjian Exp $
+ *	  src/backend/optimizer/prep/prepqual.c
  *
  *-------------------------------------------------------------------------
  */

src/backend/optimizer/prep/preptlist.c

@@ -17,7 +17,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/optimizer/prep/preptlist.c,v 1.100 2010/02/26 02:00:46 momjian Exp $
+ *	  src/backend/optimizer/prep/preptlist.c
  *
  *-------------------------------------------------------------------------
  */

src/backend/optimizer/prep/prepunion.c

@@ -22,7 +22,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/optimizer/prep/prepunion.c,v 1.183 2010/07/06 19:18:56 momjian Exp $
+ *	  src/backend/optimizer/prep/prepunion.c
  *
  *-------------------------------------------------------------------------
  */