update gortslib

Author: aler9

go.mod

@@ -5,7 +5,7 @@ go 1.13
 require (
 	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
 	github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d // indirect
-	github.com/aler9/gortsplib v0.0.0-20200216144726-cfd906cc6eb0
+	github.com/aler9/gortsplib v0.0.0-20200313131835-13b7bffbba39
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
 	gortc.io/sdp v0.17.0
 )

go.sum

@@ -2,8 +2,8 @@ github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafo
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d h1:UQZhZ2O0vMHr2cI+DC1Mbh0TJxzA3RcLoMsFw+aXw7E=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
-github.com/aler9/gortsplib v0.0.0-20200216144726-cfd906cc6eb0 h1:98xoEAoen2Up1KtSp5qbEMBKgM0qzIpKszFstcPp5+I=
-github.com/aler9/gortsplib v0.0.0-20200216144726-cfd906cc6eb0/go.mod h1:YiIgmmv0ELkWUy11Jj2h5AgfqLCpy8sIX/l9MmS8+uw=
+github.com/aler9/gortsplib v0.0.0-20200313131835-13b7bffbba39 h1:9Vb9v7wBSp+mAtqb+5IJQRarQlycp2ksrv4wRrsMPZI=
+github.com/aler9/gortsplib v0.0.0-20200313131835-13b7bffbba39/go.mod h1:YiIgmmv0ELkWUy11Jj2h5AgfqLCpy8sIX/l9MmS8+uw=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=