doc: Fix incorrect wording for --file in pg_dump

The documentation stated that the directory specified by --file
must not exist, but pg_dump does allow for empty directories to
be specified and used.

Author: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Bruce Momjian <bruce@momjian.us>
Discussion: https://postgr.es/m/534AA60D-CF6B-432F-9882-E9737B33D1B7@gmail.com

diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml
index fd4ecf01a0a00b4f29a05c75f8ee71df61db740a..5ac3f3e85108dba2d45c703d3d4c6f5c058522fc 100644 (file)
--- a/doc/src/sgml/ref/pg_dump.sgml
+++ b/doc/src/sgml/ref/pg_dump.sgml
@@ -297,8 +297,8 @@ PostgreSQL documentation
         file based output formats, in which case the standard output is used.
         It must be given for the directory output format however, where it
         specifies the target directory instead of a file. In this case the
-        directory is created by <command>pg_dump</command> and must not exist
-        before.
+        directory is created by <command>pg_dump</command> unless the directory
+        exist and is empty.
        </para>
       </listitem>
      </varlistentry>