Fix libmcrouter_test
Fix libmcrouter_test

Test Plan: unit test

Reviewed By: pavlo@fb.com

Subscribers: alikhtarov

FB internal diff: D1662985

Signature: t1:1662985:1415239705:8fa8b47e580de406af8410e3738659f2cb43ef1b

facebook/mcrouter,facebook/mcrouter,easyfmxu/mcrouter,synecdoche/mcrouter,easyfmxu/mcrouter,synecdoche/mcrouter,evertrue/mcrouter,seem-sky/mcrouter,apinski-cavium/mcrouter,apinski-cavium/mcrouter,seem-sky/mcrouter,is00hcw/mcrouter,tempbottle/mcrouter,is00hcw/mcrouter,is00hcw/mcrouter,seem-sky/mcrouter,tempbottle/mcrouter,glensc/mcrouter,yqzhang/mcrouter,glensc/mcrouter,tempbottle/mcrouter,yqzhang/mcrouter,facebook/mcrouter,facebook/mcrouter,is00hcw/mcrouter,easyfmxu/mcrouter,nvaller/mcrouter,seem-sky/mcrouter,glensc/mcrouter,reddit/mcrouter,evertrue/mcrouter,reddit/mcrouter,leitao/mcrouter,synecdoche/mcrouter,apinski-cavium/mcrouter,easyfmxu/mcrouter,evertrue/mcrouter,nvaller/mcrouter,yqzhang/mcrouter,apinski-cavium/mcrouter,zhlong73/mcrouter,zhlong73/mcrouter,synecdoche/mcrouter,leitao/mcrouter,glensc/mcrouter,leitao/mcrouter,zhlong73/mcrouter,reddit/mcrouter,yqzhang/mcrouter,nvaller/mcrouter,nvaller/mcrouter,leitao/mcrouter,reddit/mcrouter,zhlong73/mcrouter,evertrue/mcrouter,tempbottle/mcrouter