Add $PostgreSQL$ markers to a lot of files that were missing them.

This particular batch was just for *.c and *.h file.

The changes were made with the following 2 commands:

find . \( \( -name 'libstemmer' -o -name 'expected' -o -name 'ppport.h' \) -prune \) -o  \( -name '*.[ch]'  \) \( -exec grep -q '\$PostgreSQL' {} \; -o -print \) | while read file ; do head -n 1 < $file | grep -q '^/\*' && echo $file; done | xargs -l sed -i -e '1s/^\// /' -e '1i/*\n * $PostgreSQL:$ \n *'

find . \( \( -name 'libstemmer' -o -name 'expected' -o -name 'ppport.h' \) -prune \) -o  \( -name '*.[ch]'  \) \( -exec grep -q '\$PostgreSQL' {} \; -o -print \) | xargs -l sed -i -e '1i/*\n * $PostgreSQL:$ \n */'

src/backend/port/darwin/system.c

@@ -1,4 +1,7 @@
-/* only needed in OS X 10.1 and possibly early 10.2 releases */
+/*
+ * $PostgreSQL: pgsql/src/backend/port/darwin/system.c,v 1.7 2008/05/17 01:28:22 adunstan Exp $ 
+ *
+ * only needed in OS X 10.1 and possibly early 10.2 releases */
 #include <AvailabilityMacros.h>
 #if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2 || !defined(MAC_OS_X_VERSION_10_2)
 

src/backend/port/dynloader/aix.c

@@ -1,4 +1,7 @@
 /*
+ * $PostgreSQL: pgsql/src/backend/port/dynloader/aix.c,v 1.20 2008/05/17 01:28:23 adunstan Exp $ 
+ *
+ *
  * @(#)dlfcn.c	1.7 revision of 95/08/14  19:08:38
  * This is an unpublished work copyright (c) 1992 HELIOS Software GmbH
  * 30159 Hannover, Germany

src/backend/port/dynloader/sco.c

@@ -1,4 +1,7 @@
-/* Dummy file used for nothing at this point
+/*
+ * $PostgreSQL: pgsql/src/backend/port/dynloader/sco.c,v 1.2 2008/05/17 01:28:23 adunstan Exp $ 
+ *
+ * Dummy file used for nothing at this point
  *
  * see sco.h
  */

src/backend/port/dynloader/solaris.c

@@ -1,4 +1,7 @@
-/* Dummy file used for nothing at this point
+/*
+ * $PostgreSQL: pgsql/src/backend/port/dynloader/solaris.c,v 1.2 2008/05/17 01:28:23 adunstan Exp $ 
+ *
+ * Dummy file used for nothing at this point
  *
  * see solaris.h
  */

src/backend/port/dynloader/sunos4.c

@@ -1,4 +1,7 @@
-/* Dummy file used for nothing at this point
+/*
+ * $PostgreSQL: pgsql/src/backend/port/dynloader/sunos4.c,v 1.2 2008/05/17 01:28:23 adunstan Exp $ 
+ *
+ * Dummy file used for nothing at this point
  *
  * see sunos4.h
  */

src/backend/port/dynloader/svr4.c

@@ -1,4 +1,7 @@
-/* Dummy file used for nothing at this point
+/*
+ * $PostgreSQL: pgsql/src/backend/port/dynloader/svr4.c,v 1.2 2008/05/17 01:28:23 adunstan Exp $ 
+ *
+ * Dummy file used for nothing at this point
  *
  * see svr4.h
  */

src/backend/port/dynloader/univel.c

@@ -1,4 +1,7 @@
-/* Dummy file used for nothing at this point
+/*
+ * $PostgreSQL: pgsql/src/backend/port/dynloader/univel.c,v 1.4 2008/05/17 01:28:23 adunstan Exp $ 
+ *
+ * Dummy file used for nothing at this point
  *
  * see univel.h
  */

src/backend/port/dynloader/univel.h

@@ -1,4 +1,7 @@
-/*-------------------------------------------------------------------------
+/*
+ * $PostgreSQL: pgsql/src/backend/port/dynloader/univel.h,v 1.22 2008/05/17 01:28:23 adunstan Exp $ 
+ *
+ *-------------------------------------------------------------------------
  *
  * univel.h
  *	  port-specific prototypes for Intel x86/UNIXWARE

src/backend/port/dynloader/unixware.c

@@ -1,4 +1,7 @@
-/* Dummy file used for nothing at this point
+/*
+ * $PostgreSQL: pgsql/src/backend/port/dynloader/unixware.c,v 1.2 2008/05/17 01:28:23 adunstan Exp $ 
+ *
+ * Dummy file used for nothing at this point
  *
  * see unixware.h
  */

src/backend/port/dynloader/unixware.h

@@ -1,4 +1,7 @@
-/*-------------------------------------------------------------------------
+/*
+ * $PostgreSQL: pgsql/src/backend/port/dynloader/unixware.h,v 1.20 2008/05/17 01:28:23 adunstan Exp $ 
+ *
+ *-------------------------------------------------------------------------
  *
  * unixware.h
  *	  port-specific prototypes for Intel x86/UNIXWARE 7

src/backend/port/dynloader/win32.h

@@ -1,3 +1,6 @@
+/*
+ * $PostgreSQL: pgsql/src/backend/port/dynloader/win32.h,v 1.4 2008/05/17 01:28:23 adunstan Exp $ 
+ */
 #ifndef PORT_PROTOS_H
 #define PORT_PROTOS_H
 

src/backend/port/nextstep/port.c

@@ -1,3 +1,6 @@
+/*
+ * $PostgreSQL: pgsql/src/backend/port/nextstep/port.c,v 1.11 2008/05/17 01:28:23 adunstan Exp $ 
+ */
 #include "postgres.h"
 
 #ifndef _POSIX_SOURCE