[OE-core] [PATCH 1/2] json-c: use GitHub for upstream release checking

[Ross Burton]

On 20/09/2019 12:26, Adrian Bunk wrote:
> Upstream tag names are appending the date to the version,
> making "devtool check-upgrade-status" with this patch result in
> INFO: json-c                    0.13.1          UNKNOWN_BROKEN  Yi Zhao <yi.zhao at windriver.com>

I totally tested this and it worked, somehow.  Obviously my tool is broken!

V2 incoming...

Ross