PROTON-1420: Cpp example direct_send receives instead. Fix it to send.
PROTON-1420: Cpp example direct_send receives instead. Fix it to send.

ChugR/qpid-proton,ssorj/qpid-proton,ChugR/qpid-proton,astitcher/qpid-proton,kgiusti/qpid-proton,kgiusti/qpid-proton,alanconway/qpid-proton,gemmellr/qpid-proton,kgiusti/qpid-proton,kgiusti/qpid-proton,astitcher/qpid-proton,apache/qpid-proton,ssorj/qpid-proton,ChugR/qpid-proton,gemmellr/qpid-proton,apache/qpid-proton,astitcher/qpid-proton,gemmellr/qpid-proton,gemmellr/qpid-proton,kgiusti/qpid-proton,apache/qpid-proton,ssorj/qpid-proton,alanconway/qpid-proton,alanconway/qpid-proton,apache/qpid-proton,ChugR/qpid-proton,alanconway/qpid-proton,kgiusti/qpid-proton,alanconway/qpid-proton,ssorj/qpid-proton,ChugR/qpid-proton,ssorj/qpid-proton,astitcher/qpid-proton,apache/qpid-proton,astitcher/qpid-proton,alanconway/qpid-proton,apache/qpid-proton,gemmellr/qpid-proton,ChugR/qpid-proton,astitcher/qpid-proton,gemmellr/qpid-proton,ssorj/qpid-proton