explicit warning when source won't be saved (#2267)
explicit warning when source won't be saved (#2267)

explicit warning when source won't be saved
brendangregg/bcc,brendangregg/bcc,iovisor/bcc,tuxology/bcc,iovisor/bcc,iovisor/bcc,iovisor/bcc,tuxology/bcc,iovisor/bcc,tuxology/bcc,brendangregg/bcc,brendangregg/bcc,brendangregg/bcc,tuxology/bcc,tuxology/bcc