cmake: qibuild/compat: include it only once, fix message
cmake: qibuild/compat: include it only once, fix message

(every other messages start with an upper case)

dmerejkowsky/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild,aldebaran/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild