doc: Tweak synopsis indentation for consistency

doc/src/sgml/ref/create_event_trigger.sgml

@@ -22,9 +22,9 @@ PostgreSQL documentation
  <refsynopsisdiv>
 <synopsis>
 CREATE EVENT TRIGGER <replaceable class="PARAMETER">name</replaceable>
-  ON <replaceable class="PARAMETER">event</replaceable>
-  [ WHEN <replaceable class="PARAMETER">filter_variable</replaceable> IN (filter_value [, ... ]) [ AND ... ] ]
-  EXECUTE PROCEDURE <replaceable class="PARAMETER">function_name</replaceable>()
+    ON <replaceable class="PARAMETER">event</replaceable>
+    [ WHEN <replaceable class="PARAMETER">filter_variable</replaceable> IN (filter_value [, ... ]) [ AND ... ] ]
+    EXECUTE PROCEDURE <replaceable class="PARAMETER">function_name</replaceable>()
 </synopsis>
  </refsynopsisdiv>
 

doc/src/sgml/ref/import_foreign_schema.sgml

@@ -22,10 +22,10 @@ PostgreSQL documentation
  <refsynopsisdiv>
 <synopsis>
 IMPORT FOREIGN SCHEMA <replaceable class="PARAMETER">remote_schema</replaceable>
-[ { LIMIT TO | EXCEPT } ( <replaceable class="PARAMETER">table_name</replaceable> [, ...] ) ]
-FROM SERVER <replaceable class="PARAMETER">server_name</replaceable>
-INTO <replaceable class="PARAMETER">local_schema</replaceable>
-[ OPTIONS ( <replaceable class="PARAMETER">option</replaceable> '<replaceable class="PARAMETER">value</replaceable>' [, ... ] ) ]
+    [ { LIMIT TO | EXCEPT } ( <replaceable class="PARAMETER">table_name</replaceable> [, ...] ) ]
+    FROM SERVER <replaceable class="PARAMETER">server_name</replaceable>
+    INTO <replaceable class="PARAMETER">local_schema</replaceable>
+    [ OPTIONS ( <replaceable class="PARAMETER">option</replaceable> '<replaceable class="PARAMETER">value</replaceable>' [, ... ] ) ]
 </synopsis>
  </refsynopsisdiv>