{
    "name": "doctrine/key-value-store",
    "require": {
        "doctrine/common": "*"
    },
    "suggest": {
        "riak/riak-client": "dev-master"
    },
    "require-dev": {
        "riak/riak-client": "dev-master"
    },
    "description": "Simple Key-Value Store Abstraction Layer that maps to PHP objects, allowing for many backends.",
    "license": "MIT",
    "autoload": {
        "psr-0": {
            "Doctrine\\KeyValueStore\\": "lib/"
        }
    }
}

{
    "name": "doctrine/key-value-store",
    "require": {
        "doctrine/common": "*"
    },
    "suggest": {
        "riak/riak-client": "to use the Riak storage"
    },
    "require-dev": {
        "riak/riak-client": "dev-master"
    },
    "description": "Simple Key-Value Store Abstraction Layer that maps to PHP objects, allowing for many backends.",
    "license": "MIT",
    "autoload": {
        "psr-0": {
            "Doctrine\\KeyValueStore\\": "lib/"
        }
    }
}

Replace version constraint in suggest section
Replace version constraint in suggest section
