DOC: minor fix

Author: gsmolk

doc/pgprobackup.xml

@@ -1660,7 +1660,7 @@ pg_probackup restore -B <replaceable>backup_dir</replaceable> --instance <replac
         restore, run the following command:
       </para>
       <programlisting>
-pg_probackup restore -B <replaceable>backup_dir</replaceable> --instance <replaceable>instance_name</replaceable> -i <replaceable>backup_id</replaceable> --db-exclude=db1 --db-exclude=db2
+pg_probackup restore -B <replaceable>backup_dir</replaceable> --instance <replaceable>instance_name</replaceable> --db-exclude=db1 --db-exclude=db2
 </programlisting>
       <para>
         Partial restore relies on lax behavior of <productname>PostgreSQL</productname> recovery