Simplify exported spew functions by using 'ConfigState' methods

spew/dump.go

@@ -21,7 +21,6 @@ import (
 	"encoding/hex"
 	"fmt"
 	"io"
-	"os"
 	"reflect"
 	"regexp"
 	"strconv"
@@ -470,15 +469,13 @@ func fdump(cs *ConfigState, w io.Writer, a ...interface{}) {
 // Fdump formats and displays the passed arguments to io.Writer w.  It formats
 // exactly the same as Dump.
 func Fdump(w io.Writer, a ...interface{}) {
-	fdump(&Config, w, a...)
+	Config.Fdump(w, a...)
 }
 
 // Sdump returns a string with the passed arguments formatted exactly the same
 // as Dump.
 func Sdump(a ...interface{}) string {
-	var buf bytes.Buffer
-	fdump(&Config, &buf, a...)
-	return buf.String()
+	return Config.Sdump(a...)
 }
 
 /*
@@ -505,5 +502,5 @@ See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
 get the formatted result as a string.
 */
 func Dump(a ...interface{}) {
-	fdump(&Config, os.Stdout, a...)
+	Config.Dump(a...)
 }