Patch merged into coreboot/master: buildgcc: Show the exit status of wget if downloading fails.

the following patch was just integrated into master:
commit d22b9ea1cbc0e23eb2b30a48c0ed8d807a337df2
Author: zbao 
Date:   Sun Aug 30 23:35:16 2015 -0400

buildgcc: Show the exit status of wget if downloading fails.

Change-Id: Ie3a44c6db9c9c186c52b4743334266ec5411ba8a
    Signed-off-by: Zheng Bao 
    Signed-off-by: Zheng Bao 
    Reviewed-on: http://review.coreboot.org/11472
    Tested-by: build bot (Jenkins)
    Reviewed-by: Patrick Georgi

See http://review.coreboot.org/11472 for details.

-gerrit