doc: change "system" to "cluster" where appropriate

Reported-by: Jeff Davis
Discussion: https://postgr.es/m/d040a1144e0127a49e335d1244a4de102a2a443b[email protected]

Backpatch-through: master

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index bd70ff2e4b88c8497bbf2c6f1bd8dd9d8e0e0fcc..fc35a46e5eab430f91554c420a5644a7a59a900f 100644 (file)
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -2572,7 +2572,7 @@ include_dir 'conf.d'
        
        
         
-         Sets the maximum number of background processes that the system
+         Sets the maximum number of background processes that the cluster
          can support.  This parameter can only be set at server start.  The
          default is 8.
         
@@ -2680,7 +2680,7 @@ include_dir 'conf.d'
        
        
         
-         Sets the maximum number of workers that the system can support for
+         Sets the maximum number of workers that the cluster can support for
          parallel operations.  The default value is 8.  When increasing or
          decreasing this value, consider also adjusting
           and