Bugzilla bug 136251: the assertion "xferred <= op->nbytes_to_send" should not be applied when sendfilev() fails with a real error.
Bugzilla bug 136251: the assertion "xferred <= op->nbytes_to_send" should
not be applied when sendfilev() fails with a real error.

makotokato/nsprpub,makotokato/nsprpub,makotokato/nsprpub,makotokato/nsprpub,makotokato/nsprpub