pathBuilder improvements

- allocate starts slice with >0 capacity to minimize allocations

- increase initial buffer allocation size to 64

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

core/path.go

@@ -174,8 +174,8 @@ type pathBuilder struct {
 // newPathBuilder returns a new pathBuilder
 func newPathBuilder() *pathBuilder {
 	return &pathBuilder{
-		b:      make([]byte, 32)[:0],
-		starts: []int{},
+		b:      make([]byte, 64)[:0],
+		starts: make([]int, 10)[:0],
 	}
 }