[U-Boot] [PATCH] kconfig: show an error message when defconfig is not found

[Stephen Warren]

On 09/03/2014 02:48 PM, Masahiro Yamada wrote:
> When a non-existing defconfig is specified,
> display an easy-to-understand message
> (fake the error message on Linux Kernel):
>
>    $ make foo_defconfig
>    ***
>    *** Can't find default configuration "confis/foo_defconfig"!
>    ***

Echo to stderr rather than stdout seems better for an error message. I'm 
not sure the *** banner part of the message is that useful, but it's not 
a big deal.