Fix spi_worker mention in bgworker documentation

The documentation mentioned contrib/ but the module was moved to
src/test/modules/ by commit 22dfd116a127a of 9.5 era.

Problem pointed out by Dickson Guedes in bug #13896
Backpatch-to: 9.5.

diff --git a/doc/src/sgml/bgworker.sgml b/doc/src/sgml/bgworker.sgml
index 5570ed045dbc4e5e9bbc243261be1e8594e85216..07f9f1081c3e5cf19431baedeb4a5278f28edf7f 100644 (file)
--- a/doc/src/sgml/bgworker.sgml
+++ b/doc/src/sgml/bgworker.sgml
@@ -290,7 +290,8 @@ typedef struct BackgroundWorker
   </para>
 
   <para>
-   The <filename>worker_spi</> contrib module contains a working example,
+   The <filename>src/test/modules/worker_spi</> module
+   contains a working example,
    which demonstrates some useful techniques.
   </para>