Removed extra ')' in Maxtor DiamondMax 3400 pattern.

This syntax error is not reported by regcomp, because POSIX syntax
REG_EXTENDED implies RE_UNMATCHED_RIGHT_PAREN_ORD.


git-svn-id: https://smartmontools.svn.sourceforge.net/svnroot/smartmontools/trunk@1685 4ea69e1a-61f1-4043-bf83-b5c94c648137