Add Stringer support.

Makefile

@@ -3,7 +3,7 @@ BENCH=.
 COVERPROFILE=/tmp/c.out
 
 bench: benchpreq
-	go test -v -test.bench=$(BENCH) ./.bench
+	go test -v -test.bench=$(BENCH)
 
 cover: fmt
 	go test -coverprofile=$(COVERPROFILE) -test.run=$(TEST) .

db.go

@@ -1,6 +1,7 @@
 package bolt
 
 import (
+	"fmt"
 	"io"
 	"os"
 	"sync"
@@ -42,6 +43,16 @@ func (db *DB) Path() string {
 	return db.path
 }
 
+// GoString returns the Go string representation of the database.
+func (db *DB) GoString() string {
+	return fmt.Sprintf("bolt.DB{path:%q}", db.path)
+}
+
+// String returns the string representation of the database.
+func (db *DB) String() string {
+	return fmt.Sprintf("DB<%q>", db.path)
+}
+
 // Open opens a data file at the given path and initializes the database.
 // If the file does not exist then it will be created automatically.
 func (db *DB) Open(path string, mode os.FileMode) error {