Split testing of --tls-verify into separate TestTLSVerifyFlags
Split testing of --tls-verify into separate TestTLSVerifyFlags

It will get bigger, and we will also want to test imageDestOptions
for extra confidence.

Only moves the code, should not change (test) behavior.

Signed-off-by: Miloslav Trmač <9c008e38982a5397deb855345fb164f0558459ae@redhat.com>

mtrmac/skopeo,mtrmac/skopeo,mtrmac/skopeo