chore: referenced to master branch of the MongoDB client

chore: using errorstring

chore: updating vendor

go.mod

@@ -4,9 +4,10 @@ go 1.12
 
 require (
 	github.com/Sectorbob/mlab-ns2 v0.0.0-20171030222938-d3aa0c295a8a
+	github.com/go-test/deep v1.0.1
 	github.com/hashicorp/hcl v0.0.0-20180404174102-ef8a98b0bbce // indirect
 	github.com/hashicorp/terraform v0.12.1
-	github.com/mongodb/go-client-mongodb-atlas v0.1.1
+	github.com/mongodb/go-client-mongodb-atlas v0.1.2-0.20191125173016-a644c761794e
 	github.com/mwielbut/pointy v1.1.0
 	github.com/spf13/cast v1.3.0
 )

go.sum

@@ -233,6 +233,8 @@ github.com/mitchellh/reflectwalk v1.0.0 h1:9D+8oIskB4VJBN5SFlmc27fSlIBZaov1Wpk/I
 github.com/mitchellh/reflectwalk v1.0.0/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw=
 github.com/mongodb/go-client-mongodb-atlas v0.1.1 h1:L7eaGSvw1raCQF69N/tlYWAyyJRIJpdyqK6d90BtQ74=
 github.com/mongodb/go-client-mongodb-atlas v0.1.1/go.mod h1:LS8O0YLkA+sbtOb3fZLF10yY3tJM+1xATXMJ3oU35LU=
+github.com/mongodb/go-client-mongodb-atlas v0.1.2-0.20191125173016-a644c761794e h1:BZMjHAfy2ppKGSq+mJwJyYQSmKHyeiNgwradSVVa/zc=
+github.com/mongodb/go-client-mongodb-atlas v0.1.2-0.20191125173016-a644c761794e/go.mod h1:LS8O0YLkA+sbtOb3fZLF10yY3tJM+1xATXMJ3oU35LU=
 github.com/mwielbut/pointy v1.1.0 h1:U5/YEfoIkaGCHv0St3CgjduqXID4FNRoyZgLM1kY9vg=
 github.com/mwielbut/pointy v1.1.0/go.mod h1:MvvO+uMFj9T5DMda33HlvogsFBX7pWWKAkFIn4teYwY=
 github.com/neelance/astrewrite v0.0.0-20160511093645-99348263ae86/go.mod h1:kHJEU3ofeGjhHklVoIGuVj85JJwZ6kWPaJwCIxgnFmo=

mongodbatlas/resource_mongodbatlas_maintenance_window.go

@@ -166,7 +166,7 @@ func resourceMongoDBAtlasMaintenanceWindowUpdate(d *schema.ResourceData, meta in
 
 	_, err := conn.MaintenanceWindows.Update(context.Background(), d.Id(), maintenanceWindowReq)
 	if err != nil {
-		return fmt.Errorf(errorMaintenanceRead, d.Id(), err)
+		return fmt.Errorf(errorMaintenanceUpdate, d.Id(), err)
 	}
 
 	return nil