domainkeys: fixed pod grammar error
domainkeys: fixed pod grammar error

smtpd/qpsmtpd,salvis/qpsmtpd,msimerson/qpsmtpd,priyadi/qpsmtpd,priyadi/qpsmtpd,sentinelleader/qpsmtpd-dev,sentinelleader/qpsmtpd-dev,smtpd/qpsmtpd,sieutruc/qpsmtpd,sieutruc/qpsmtpd,msimerson/qpsmtpd,sieutruc/qpsmtpd,salvis/qpsmtpd,priyadi/qpsmtpd