diff --git a/vendor/google.golang.org/grpc/dialoptions.go b/vendor/google.golang.org/grpc/dialoptions.go
index 7a49723..40d8ba6 100644
--- a/vendor/google.golang.org/grpc/dialoptions.go
+++ b/vendor/google.golang.org/grpc/dialoptions.go
@@ -482,8 +482,7 @@
 }
 
 // WithAuthority returns a DialOption that specifies the value to be used as the
-// :authority pseudo-header. This value only works with WithInsecure and has no
-// effect if TransportCredentials are present.
+// :authority pseudo-header and as the server name in authentication handshake.
 func WithAuthority(a string) DialOption {
 	return newFuncDialOption(func(o *dialOptions) {
 		o.authority = a
@@ -519,14 +518,16 @@
 // WithDefaultServiceConfig returns a DialOption that configures the default
 // service config, which will be used in cases where:
 //
-// 1. WithDisableServiceConfig is also used.
-// 2. Resolver does not return a service config or if the resolver returns an
-//    invalid service config.
+// 1. WithDisableServiceConfig is also used, or
 //
-// Experimental
+// 2. The name resolver does not provide a service config or provides an
+// invalid service config.
 //
-// Notice: This API is EXPERIMENTAL and may be changed or removed in a
-// later release.
+// The parameter s is the JSON representation of the default service config.
+// For more information about service configs, see:
+// https://github.com/grpc/grpc/blob/master/doc/service_config.md
+// For a simple example of usage, see:
+// examples/features/load_balancing/client/main.go
 func WithDefaultServiceConfig(s string) DialOption {
 	return newFuncDialOption(func(o *dialOptions) {
 		o.defaultServiceConfigRawJSON = &s
@@ -538,14 +539,8 @@
 // will happen automatically if no data is written to the wire or if the RPC is
 // unprocessed by the remote server.
 //
-// Retry support is currently disabled by default, but will be enabled by
-// default in the future.  Until then, it may be enabled by setting the
-// environment variable "GRPC_GO_RETRY" to "on".
-//
-// Experimental
-//
-// Notice: This API is EXPERIMENTAL and may be changed or removed in a
-// later release.
+// Retry support is currently enabled by default, but may be disabled by
+// setting the environment variable "GRPC_GO_RETRY" to "off".
 func WithDisableRetry() DialOption {
 	return newFuncDialOption(func(o *dialOptions) {
 		o.disableRetry = true