maintainer-feedback requested: [Bug 240433] emulators/virtualbox-ose-additions: fix build with "make -s"

[bugzilla-noreply at freebsd.org]

Bugzilla Automation <bugzilla at FreeBSD.org> has asked vbox at FreeBSD.org for
maintainer-feedback:
Bug 240433: emulators/virtualbox-ose-additions: fix build with "make -s"
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240433



--- Description ---
${ECHO} is a make(1) builtin which is empty when "-s" is used.	For functional
build modifications ${ECHO_CMD} must be used, because the build fails
otherwise.