When a CVE is created, it often has no precise version information and
this is stored as "-" (matching any version). After an update, version
information is added. The previous "-" must be removed, otherwise, the
CVE is still "Unpatched" for cve-check.
Signed-off-by: Yoann Congal <yoann.congal@smile.fr> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>