doc: Add standard Environment section to pg_amcheck ref page

Reviewed-by: Daniel Gustafsson 
Discussion: https://www.postgresql.org/message-id/flat/8458c9c5-18f1-46d7-94c4-1c30e4f44908%40eisentraut.org

diff --git a/doc/src/sgml/ref/pg_amcheck.sgml b/doc/src/sgml/ref/pg_amcheck.sgml
index 067c806b46d00e172e96f166147bf8ace6f64d69..2b9634b3ac2dfb87a51e5aeb95535a9f257bb8f4 100644 (file)
--- a/doc/src/sgml/ref/pg_amcheck.sgml
+++ b/doc/src/sgml/ref/pg_amcheck.sgml
@@ -644,6 +644,24 @@ PostgreSQL documentation
   
  
 
+ 
+  Environment
+
+  
+   pg_amcheck, like most other PostgreSQL
+   utilities,
+   also uses the environment variables supported by libpq
+   (see ).
+  
+
+  
+   The environment variable PG_COLOR specifies whether to use
+   color in diagnostic messages. Possible values are
+   always, auto and
+   never.
+  
+ 
+
  
   Notes