Deprecate extra Intercept methods on InterceptLogger

These interface methods are equivalent to the methods that already exist
on the embedded Logger interface. The interceptLogger can implement the
Logger insterface instead of adding extra interface methods.

interceptlogger.go

@@ -210,18 +210,23 @@ func (i *interceptLogger) DeregisterSink(sink SinkAdapter) {
 	atomic.AddInt32(i.sinkCount, -1)
 }
 
-// Create a *log.Logger that will send it's data through this Logger. This
-// allows packages that expect to be using the standard library to log to
-// actually use this logger, which will also send to any registered sinks.
 func (i *interceptLogger) StandardLoggerIntercept(opts *StandardLoggerOptions) *log.Logger {
+	return i.StandardLogger(opts)
+}
+
+func (i *interceptLogger) StandardLogger(opts *StandardLoggerOptions) *log.Logger {
 	if opts == nil {
 		opts = &StandardLoggerOptions{}
 	}
 
-	return log.New(i.StandardWriterIntercept(opts), "", 0)
+	return log.New(i.StandardWriter(opts), "", 0)
 }
 
 func (i *interceptLogger) StandardWriterIntercept(opts *StandardLoggerOptions) io.Writer {
+	return i.StandardWriter(opts)
+}
+
+func (i *interceptLogger) StandardWriter(opts *StandardLoggerOptions) io.Writer {
 	return &stdlogAdapter{
 		log:         i,
 		inferLevels: opts.InferLevels,

interceptlogger_test.go

@@ -237,7 +237,7 @@ func TestInterceptLogger(t *testing.T) {
 			Output: &buf,
 		})
 
-		standard := intercept.StandardLoggerIntercept(&StandardLoggerOptions{InferLevels: true})
+		standard := intercept.StandardLogger(&StandardLoggerOptions{InferLevels: true})
 
 		sink := NewSinkAdapter(&LoggerOptions{
 			Level:  Debug,

logger.go

@@ -271,10 +271,10 @@ type InterceptLogger interface {
 	// the current name as well.
 	ResetNamedIntercept(name string) InterceptLogger
 
-	// Return a value that conforms to the stdlib log.Logger interface
+	// Deprecated: use StandardLogger
 	StandardLoggerIntercept(opts *StandardLoggerOptions) *log.Logger
 
-	// Return a value that conforms to io.Writer, which can be passed into log.SetOutput()
+	// Deprecated: use StandardWriter
 	StandardWriterIntercept(opts *StandardLoggerOptions) io.Writer
 }