Fix typos.

Alexander Lakhin

Discussion: http://postgr.es/m/212b0987-83e5-e2ae-c5e8-b8170fdaf3a0@gmail.com

doc/src/sgml/func.sgml

@@ -26578,7 +26578,7 @@ SELECT collation for ('foo' COLLATE "de_DE");
         record that it has consumed, which must always be greater than or
         equal to <literal>summarized_lsn</literal>; if the WAL summarizer is
         not running, it will be equal to <literal>summarized_lsn</literal>.
-        <literal>summarized_pid</literal> is the PID of the WAL summarizer
+        <literal>summarizer_pid</literal> is the PID of the WAL summarizer
         process, if it is running, and otherwise NULL.
        </para></entry>
       </row>

src/bin/pg_walsummary/t/002_blocks.pl

@@ -63,7 +63,7 @@ SELECT EXISTS (
 )
 EOM
 
-# Figure out the exact details for the new sumamry file.
+# Figure out the exact details for the new summary file.
 my $details = $node1->safe_psql('postgres', <<EOM);
 SELECT tli, start_lsn, end_lsn from pg_available_wal_summaries()
 	WHERE tli = $summarized_tli AND end_lsn > '$summarized_lsn'