DOC: style fixes after review for PGPRO-640

Author: Liudmila Mantrova

doc/src/sgml/libpq.sgml

@@ -919,8 +919,8 @@ postgresql://%2Fvar%2Flib%2Fpostgresql/dbname
        <literal>hostaddr</> corresponds to the first host name, the second
        <literal>hostaddr</> corresponds to the second host name, and so
        forth. As an exception, if only one <literal>port</literal> is specified,
-       it applies to all the hosts. You can define the order in which to
-       try to connect to the specified hosts using the
+       it applies to all the hosts. You can define the order of choosing the
+       hosts to connect to using the
        <xref linkend="libpq-connect-hostorder"> parameter.
      </para>
 
@@ -1046,7 +1046,7 @@ postgresql://%2Fvar%2Flib%2Fpostgresql/dbname
        <term><literal>hostorder</literal></term>
        <listitem>
        <para>
-        Defines the order in which to try to connect to the hosts specified
+        Defines the order of connecting to the hosts specified
         by the <xref linkend="libpq-connect-host"> parameter.
        </para>
        <para>
@@ -1057,8 +1057,8 @@ postgresql://%2Fvar%2Flib%2Fpostgresql/dbname
        <para>
         If the value is <literal>random</literal>, the host to connect to
         is randomly picked from the list. This setting can help you balance
-        the load between several cluster nodes instead of always trying to
-        connect to one of the first hosts in the list. You can also use the
+        the load between several cluster nodes instead of always connecting
+        to the first available host in the list. You can also use the
         <xref linkend="libpq-connect-target-session-attrs"> parameter
         to forbid read-only connections.
        </para>