Since there currently is only one possible parenthesized option, namely
VERBOSE, it's a bit pointless to show it with "{ } [, ... ]". The curly
braces are useless and therefore confusing, as seen in a recent question
from Karsten Hilbert. Remove the extra decoration for the time being;
we can put it back when and if REINDEX grows some more options.
<refsynopsisdiv>
<synopsis>
-REINDEX [ ( { VERBOSE } [, ...] ) ] { INDEX | TABLE | SCHEMA | DATABASE | SYSTEM } <replaceable class="PARAMETER">name</replaceable>
+REINDEX [ ( VERBOSE ) ] { INDEX | TABLE | SCHEMA | DATABASE | SYSTEM } <replaceable class="PARAMETER">name</replaceable>
</synopsis>
</refsynopsisdiv>