Clean up some misleading references to %p being a full path, per Simon.

doc/src/sgml/backup.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/backup.sgml,v 2.93 2006/11/04 18:20:27 tgl Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/backup.sgml,v 2.94 2006/11/10 22:32:20 tgl Exp $ -->
 
 <chapter id="backup">
  <title>Backup and Restore</title>
@@ -599,7 +599,7 @@ archive_command = 'test ! -f .../%f &amp;&amp; cp %p .../%f'
     In writing your archive command, you should assume that the file names to
     be archived may be up to 64 characters long and may contain any
     combination of ASCII letters, digits, and dots.  It is not necessary to
-    remember the original full path (<literal>%p</>) but it is necessary to
+    remember the original relative path (<literal>%p</>) but it is necessary to
     remember the file name (<literal>%f</>).
    </para>
 

src/backend/access/transam/xlog.c

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.254 2006/11/08 20:12:04 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.255 2006/11/10 22:32:20 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -2434,7 +2434,7 @@ RestoreArchivedFile(char *path, const char *xlogfname,
 			switch (sp[1])
 			{
 				case 'p':
-					/* %p: full path of target file */
+					/* %p: relative path of target file */
 					sp++;
 					StrNCpy(dp, xlogpath, endp - dp);
 					make_native_path(dp);

src/backend/postmaster/pgarch.c

@@ -19,7 +19,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/postmaster/pgarch.c,v 1.25 2006/08/07 17:41:42 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/postmaster/pgarch.c,v 1.26 2006/11/10 22:32:20 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -417,7 +417,7 @@ pgarch_archiveXlog(char *xlog)
 			switch (sp[1])
 			{
 				case 'p':
-					/* %p: full path of source file */
+					/* %p: relative path of source file */
 					sp++;
 					StrNCpy(dp, pathname, endp - dp);
 					make_native_path(dp);