[Qemu-devel] -serial stdio broken

[Blue Swirl]

I guess e1c09175bc00dd8dfb2ad1b26e1858dcdc109b59 or
998bbd74b9d813b14a3a3b5009a5d5a48c7dce51 broke -serial stdio for all
targets:
qemu -serial stdio -monitor stdio
chardev: opening backend "stdio" failed
qemu: could not open serial device 'stdio': No such file or directory