Update assert package.

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/pkg/errors v0.8.1
 	github.com/rs/xid v1.2.1
 	github.com/sirupsen/logrus v1.4.2
-	github.com/smallstep/assert v0.0.0-20180720014142-de77670473b5
+	github.com/smallstep/assert v0.0.0-20200103212524-b99dc1097b15
 	github.com/smallstep/cli v0.14.0-rc.1.0.20191218000521-3e7348324838
 	github.com/smallstep/nosql v0.2.0
 	github.com/urfave/cli v1.20.1-0.20181029213200-b67dcf995b6a

go.sum

@@ -109,6 +109,8 @@ github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/smallstep/assert v0.0.0-20180720014142-de77670473b5 h1:lX6ybsQW9Agn3qK/W1Z39Z4a6RyEMGem/gXUYW0axYk=
 github.com/smallstep/assert v0.0.0-20180720014142-de77670473b5/go.mod h1:TC9A4+RjIOS+HyTH7wG17/gSqVv95uDw2J64dQZx7RE=
+github.com/smallstep/assert v0.0.0-20200103212524-b99dc1097b15 h1:kSImCuenAkXtCaBeQ1UhmzzJGRhSm8sVH7I3sHE2Qdg=
+github.com/smallstep/assert v0.0.0-20200103212524-b99dc1097b15/go.mod h1:MyOHs9Po2fbM1LHej6sBUT8ozbxmMOFG+E+rx/GSGuc=
 github.com/smallstep/certificates v0.14.0-rc.1.0.20191023014154-4669bef8c700/go.mod h1:/WOAB2LkcjkEbKG5rDol+A22Lp3UsttkLPLkY7tVtuk=
 github.com/smallstep/certificates v0.14.0-rc.1.0.20191025192352-8ef9b020ed24/go.mod h1:043iBnsMvNhQ+QFwSh0N6JR3H2yamHPPAc78vCf+8Tc=
 github.com/smallstep/certificates v0.14.0-rc.1.0.20191126035953-e88034bea402/go.mod h1:r2UTcAZNriKlwvNNXymNAcF3iKL6mTYOYrOCtBYYGJU=