The binary 'cve-check-update' downloads the CVE database from the Internet.
If the system is behind a web proxy, the download fails, as proxy-related
variables are not exported.
In turn, 'cve-check-tool' does not connect to the network and correspondingly
does not need exported proxies.
Exported all proxy-related environment variables to 'cve-check-update' and
removed the unneeded export from 'cve-check-tool'.
Signed-off-by: Konstantin Shemyak <konstantin.shemyak@ge.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
