doc: mention libpq regression tests

Reported-by: Ryo Matsumura
Discussion: https://postgr.es/m/TYCPR01MB11316B3FB56EE54D70BF0CEF6E8E4A@TYCPR01MB11316.jpnprd01.prod.outlook.com

Backpatch-through: 11

diff --git a/doc/src/sgml/regress.sgml b/doc/src/sgml/regress.sgml
index 724ef566e76d3129edd65ae9529af27d7a9d96de..98a702ef1af408154327e790a3c3d6049fa6e749 100644 (file)
--- a/doc/src/sgml/regress.sgml
+++ b/doc/src/sgml/regress.sgml
@@ -194,8 +194,9 @@ make check-world -j8 >/dev/null
    
    
     
-     Regression tests for the ECPG interface library,
-     located in src/interfaces/ecpg/test.
+     Regression tests for the interface libraries,
+     located in src/interfaces/libpq/test and
+     src/interfaces/ecpg/test.