Add missing stdlib.h include for exit().
Add missing stdlib.h include for exit().

Tested:
blaze test util/gtl/opensource:test

R=csilvers
DELTA=1  (1 added, 0 deleted, 0 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=3324

stephane-martin/sparsehash,aadityakalsi/sparsehash,rob-p/sparsehash,lukedeo/sparsehash,leondutoit/sparsehash,xtao/sparsehash,redknightlois/sparsehash,jacklicn/sparsehash,venkey-ariv/sparsehash,COMBINE-lab/sparsehash,RChehowski/sparsehash,tgoodyear/sparsehash,JanX2/sparsehash,epitzer/sparsehash,danielwhitehall/sparsehash,kmammou/sparsehash,jacklicn/sparsehash,robertschrader/sparsehash,danielwhitehall/sparsehash,bufans/sparsehash,bufans/sparsehash,aadityakalsi/sparsehash,dabbertorres/GoogleHashMaps,corburn/sparsehash,kaka1992/sparsehash,dabbertorres/GoogleHashMaps,StevenLOL/sparsehash,xinchoubiology/sparsehash,blackball/sparsehash,chengmo03013106/sparsehash,gulgi/sparsehash,liuqiang2/sparsehash,kmammou/sparsehash,rob-p/sparsehash,tcpan/sparsehash,resouer/sparsehash,redknightlois/sparsehash,blackball/sparsehash,aadityakalsi/sparsehash,JanX2/sparsehash,RChehowski/sparsehash,StevenLOL/sparsehash,danielwhitehall/sparsehash,xinchoubiology/sparsehash,tcpan/sparsehash,sparsehash/sparsehash,windeye/sparsehash,pip010/sparsehash,resouer/sparsehash,fritzo/sparsehash,jbboehr/sparsehash,tgoodyear/sparsehash,guiquanz/sparsehash,mrxsaimon/sparsehash,corburn/sparsehash,WangDequan/sparsehash,JanX2/sparsehash,felixguendling/sparsehash,jacklicn/sparsehash,leondutoit/sparsehash,zegl/sparsehash,robertschrader/sparsehash,kinjalbhavsar/sparsehash,stephane-martin/sparsehash,StevenLOL/sparsehash,windeye/sparsehash,zegl/sparsehash,WangDequan/sparsehash,venkey-ariv/sparsehash,sparsehash/sparsehash,chengmo03013106/sparsehash,COMBINE-lab/sparsehash,pip010/sparsehash,borud/sparsehash,sparsehash/sparsehash,felixguendling/sparsehash,resouer/sparsehash,TomasRejhons/sparsehash,lukedeo/sparsehash,mikeagn/sparsehash,lukedeo/sparsehash,gulgi/sparsehash,yuanjia1011/sparsehash,PanHao000/sparsehash,yuanjia1011/sparsehash,stephane-martin/sparsehash,mikeagn/sparsehash,RChehowski/sparsehash,tcpan/sparsehash,mikeagn/sparsehash,kaka1992/sparsehash,corburn/sparsehash,epitzer/sparsehash,jbboehr/sparsehash,tgoodyear/sparsehash,lhigueragamboa/sparsehash,xtao/sparsehash,pip010/sparsehash,mrxsaimon/sparsehash,COMBINE-lab/sparsehash,dabbertorres/GoogleHashMaps,yuanjia1011/sparsehash,lhigueragamboa/sparsehash,kinjalbhavsar/sparsehash,windeye/sparsehash,kmammou/sparsehash,redknightlois/sparsehash,rob-p/sparsehash,WangDequan/sparsehash,guiquanz/sparsehash,robertschrader/sparsehash,chengmo03013106/sparsehash,blackball/sparsehash,kinjalbhavsar/sparsehash,zegl/sparsehash,epitzer/sparsehash,fritzo/sparsehash,borud/sparsehash,xinchoubiology/sparsehash,mrxsaimon/sparsehash,jbboehr/sparsehash,PanHao000/sparsehash,PanHao000/sparsehash,TomasRejhons/sparsehash,lhigueragamboa/sparsehash,gulgi/sparsehash,kaka1992/sparsehash,bufans/sparsehash,fritzo/sparsehash,liuqiang2/sparsehash,venkey-ariv/sparsehash,borud/sparsehash,leondutoit/sparsehash,liuqiang2/sparsehash,guiquanz/sparsehash,TomasRejhons/sparsehash,felixguendling/sparsehash,xtao/sparsehash