When printing empty objects, the closing curly brace was missing one
indentation level.

Example from the output of test_utils:

BEFORE FIX:
{
	"foo":	"bar",
	"child":	{
		"grandchild":	{
	}
	}
}

AFTER FIX:
{
	"foo":	"bar",
	"child":	{
		"grandchild":	{
		}
	}
}