doc: fix wording for plpgsql, add "and"

Reported-by: Anthony Greene
Discussion: https://postgr.es/m/CAPRNmnsSZ4QL75FUjcS8ND_oV+WjgyPbZ4ch2RUwmW6PWzF38w@mail.gmail.com

Backpatch-through: 9.4

diff --git a/doc/src/sgml/plpgsql.sgml b/doc/src/sgml/plpgsql.sgml
index 1bd160cd359d90c66db5a70edd1a7bcd71e6a29c..0650f036313b0300c332b412ae3e4465b4ec5a52 100644 (file)
--- a/doc/src/sgml/plpgsql.sgml
+++ b/doc/src/sgml/plpgsql.sgml
@@ -4926,7 +4926,7 @@ CREATE FUNCTION
   <para>
    <application>PL/pgSQL</application> is similar to PL/SQL in many
    aspects. It is a block-structured, imperative language, and all
-   variables have to be declared.  Assignments, loops, conditionals
+   variables have to be declared.  Assignments, loops, and conditionals
    are similar.  The main differences you should keep in mind when
    porting from <application>PL/SQL</> to
    <application>PL/pgSQL</application> are: