Add the "0x" prefix to the error messages format to make it unambiguous
about what kind of value we're talking about.
Signed-off-by: NBorislav Petkov <bp@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Message-Id: <20161027181445.25319-1-bp@alien8.de>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>