GNU patch through 2.7.6 is vulnerable to OS shell command injection that
can be exploited by opening a crafted patch file that contains an ed style
diff payload with shell metacharacters. The ed editor does not need to be
present on the vulnerable system. This is different from CVE-2018-1000156.

https://nvd.nist.gov/vuln/detail/CVE-2019-13638

Signed-off-by: Russell Senior <russell@personaltelco.net>

In GNU patch through 2.7.6, the following of symlinks is mishandled in
certain cases other than input files. This affects inp.c and util.c.

https://nvd.nist.gov/vuln/detail/CVE-2019-13636

Signed-off-by: Russell Senior <russell@personaltelco.net>

The last commit added PKG_CPE_ID and now uscan detects a CVE that I missed

Reordered patches by date

Signed-off-by: Rosen Penev <rosenp@gmail.com>
[tweaked commit message]
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>

Patches taken from official git repository.

Added PKG_CPE_ID for proper CVE tracking.

Added PKG_BUILD_PARALLEL for faster compilation.

Also adjusted Makefile to be more similar to other projects.

Signed-off-by: Rosen Penev <rosenp@gmail.com>