upgrade gtm

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/google/go-cmp v0.2.0 // indirect
 	github.com/influxdata/influxdb1-client v0.0.0-20190402204710-8ff2fc3824fc
 	github.com/pkg/errors v0.8.1 // indirect
-	github.com/rwynn/gtm v0.0.0-20190525195920-6fac56b3af7b
+	github.com/rwynn/gtm v0.0.0-20190528020459-26a133b33a61
 	github.com/serialx/hashring v0.0.0-20180504054112-49a4782e9908 // indirect
 	github.com/stretchr/testify v1.3.0 // indirect
 	github.com/tidwall/pretty v0.0.0-20190325153808-1166b9ac2b65 // indirect

go.sum

@@ -14,8 +14,8 @@ github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/rwynn/gtm v0.0.0-20190525195920-6fac56b3af7b h1:MoLkUby4z9LlLoBjF7qqHxsfQOyBxk7EhSGENIrZDLA=
-github.com/rwynn/gtm v0.0.0-20190525195920-6fac56b3af7b/go.mod h1:LYXeTMjbA7l9k9oEM+NUBuu0BgvNrD5nQuo8seLsar0=
+github.com/rwynn/gtm v0.0.0-20190528020459-26a133b33a61 h1:4A5xpXSqM3FvEqrE4h8YnKgtaGvH4Ua5by62nJ5/bMU=
+github.com/rwynn/gtm v0.0.0-20190528020459-26a133b33a61/go.mod h1:LYXeTMjbA7l9k9oEM+NUBuu0BgvNrD5nQuo8seLsar0=
 github.com/serialx/hashring v0.0.0-20180504054112-49a4782e9908 h1:RRpyb4kheanCQVyYfOhkZoD/cwClvn12RzHex2ZmHxw=
 github.com/serialx/hashring v0.0.0-20180504054112-49a4782e9908/go.mod h1:/yeG0My1xr/u+HZrFQ1tOQQQQrOawfyMUH13ai5brBc=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=