fix pg_rewind docs

Author: angaz

doc/src/sgml/ref/pg_rewind.sgml

@@ -289,7 +289,10 @@ PostgreSQL documentation
       <term><option>--extension=<replaceable class="parameter">path</replaceable></option></term>
       <listitem>
        <para>
-        Load shared library that performs custom rewind for postgres extension. The <replaceable class="parameter">path</replaceable> may be full or relative to PKGLIBDIR. File extension is optional. Multiple extensions can be selected by multiple <option>-e</option> switches.
+        Load shared library that performs custom rewind for postgres extension.
+        The <replaceable class="parameter">path</replaceable> may be full or
+        relative to PKGLIBDIR. File extension is optional. Multiple extensions
+        can be selected by multiple <option>-e</option> switches.
        </para>
       </listitem>
      </varlistentry>