Small logic fix for podman pull with tls-verify

Ensure we don't force TLS verification when --tls-verify is set
to false.

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>

Closes: #636
Approved by: rhatdan

cmd/podman/pull.go

@@ -99,7 +99,7 @@ func pullCmd(c *cli.Context) error {
 		DockerCertPath:              c.String("cert-dir"),
 		DockerInsecureSkipTLSVerify: !c.BoolT("tls-verify"),
 	}
-	if !c.IsSet("tls-verify") {
+	if !c.IsSet("tls-verify") || !c.Bool("tls-verify") {
 		forceSecure = false
 	}