Update ugorji/go dependency

Fixes swaggo#128

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/stretchr/testify v1.3.0
 	github.com/swaggo/files v0.0.0-20190704085106-630677cd5c14
 	github.com/swaggo/swag v1.5.1
-	github.com/ugorji/go v1.1.5-pre // indirect
+	github.com/ugorji/go v1.1.13 // indirect
 	golang.org/x/net v0.0.0-20190611141213-3f473d35a33a
 	golang.org/x/sys v0.0.0-20190610200419-93c9922d18ae // indirect
 	golang.org/x/text v0.3.2 // indirect

go.sum

@@ -60,9 +60,12 @@ github.com/swaggo/swag v1.5.1/go.mod h1:1Bl9F/ZBpVWh22nY0zmYyASPO1lI/zIwRDrpZU+t
 github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
 github.com/ugorji/go v1.1.5-pre h1:jyJKFOSEbdOc2HODrf2qcCkYOdq7zzXqA9bhW5oV4fM=
 github.com/ugorji/go v1.1.5-pre/go.mod h1:FwP/aQVg39TXzItUBMwnWp9T9gPQnXw4Poh4/oBQZ/0=
+github.com/ugorji/go v1.1.13 h1:nB3O5kBSQGjEQAcfe1aLUYuxmXdFKmYgBZhY32rQb6Q=
+github.com/ugorji/go v1.1.13/go.mod h1:jxau1n+/wyTGLQoCkjok9r5zFa/FxT6eI5HiHKQszjc=
 github.com/ugorji/go/codec v0.0.0-20181022190402-e5e69e061d4f/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
 github.com/ugorji/go/codec v1.1.5-pre h1:5YV9PsFAN+ndcCtTM7s60no7nY7eTG3LPtxhSwuxzCs=
 github.com/ugorji/go/codec v1.1.5-pre/go.mod h1:tULtS6Gy1AE1yCENaw4Vb//HLH5njI2tfCQDUqRd8fI=
+github.com/ugorji/go/codec v1.1.13/go.mod h1:oNVt3Dq+FO91WNQ/9JnHKQP2QJxTzoN7wCBFCq1OeuU=
 github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/net v0.0.0-20181005035420-146acd28ed58/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=