Correct the main_class for the ABI stubber.
Correct the main_class for the ABI stubber.

Summary: The main_class omitted a package name. Oops.

Test Plan:
buck build src/com/facebook/buck/java/abi:api-stubber
Run the thing

mikekap/buck,artiya4u/buck,mogers/buck,dushmis/buck,stuhood/buck,grumpyjames/buck,justinmuller/buck,hgl888/buck,brettwooldridge/buck,1yvT0s/buck,ilya-klyuchnikov/buck,Dominator008/buck,facebook/buck,artiya4u/buck,Learn-Android-app/buck,pwz3n0/buck,zhan-xiong/buck,mnuessler/buck,OkBuilds/buck,SeleniumHQ/buck,grumpyjames/buck,OkBuilds/buck,mnuessler/buck,illicitonion/buck,romanoid/buck,janicduplessis/buck,brettwooldridge/buck,hgl888/buck,pwz3n0/buck,pwz3n0/buck,janicduplessis/buck,OkBuilds/buck,Dominator008/buck,kageiit/buck,hgl888/buck,Heart2009/buck,ilya-klyuchnikov/buck,raviagarwal7/buck,marcinkwiatkowski/buck,sdwilsh/buck,illicitonion/buck,robbertvanginkel/buck,davido/buck,robbertvanginkel/buck,illicitonion/buck,SeleniumHQ/buck,lukw00/buck,darkforestzero/buck,neonichu/buck,clonetwin26/buck,nguyentruongtho/buck,zhan-xiong/buck,luiseduardohdbackup/buck,1yvT0s/buck,SeleniumHQ/buck,mikekap/buck,artiya4u/buck,rmaz/buck,mikekap/buck,dsyang/buck,brettwooldridge/buck,justinmuller/buck,siddhartharay007/buck,zhan-xiong/buck,shs96c/buck,sdwilsh/buck,zpao/buck,vschs007/buck,illicitonion/buck,facebook/buck,nguyentruongtho/buck,Learn-Android-app/buck,romanoid/buck,clonetwin26/buck,dushmis/buck,grumpyjames/buck,SeleniumHQ/buck,marcinkwiatkowski/buck,liuyang-li/buck,raviagarwal7/buck,SeleniumHQ/buck,mnuessler/buck,dsyang/buck,zhuxiaohao/buck,Dominator008/buck,raviagarwal7/buck,dpursehouse/buck,Learn-Android-app/buck,stuhood/buck,vschs007/buck,mnuessler/buck,darkforestzero/buck,Learn-Android-app/buck,liuyang-li/buck,romanoid/buck,1yvT0s/buck,shs96c/buck,mikekap/buck,1yvT0s/buck,zpao/buck,mogers/buck,romanoid/buck,brettwooldridge/buck,liuyang-li/buck,hgl888/buck,artiya4u/buck,justinmuller/buck,1yvT0s/buck,kageiit/buck,dpursehouse/buck,rowillia/buck,ilya-klyuchnikov/buck,mikekap/buck,LegNeato/buck,Learn-Android-app/buck,k21/buck,romanoid/buck,luiseduardohdbackup/buck,mikekap/buck,dpursehouse/buck,bocon13/buck,vine/buck,LegNeato/buck,mogers/buck,dsyang/buck,darkforestzero/buck,vine/buck,vine/buck,illicitonion/buck,LegNeato/buck,rmaz/buck,rowillia/buck,robbertvanginkel/buck,rmaz/buck,siddhartharay007/buck,rowillia/buck,LegNeato/buck,zhan-xiong/buck,facebook/buck,SeleniumHQ/buck,neonichu/buck,hgl888/buck,k21/buck,sdwilsh/buck,OkBuilds/buck,rhencke/buck,daedric/buck,Dominator008/buck,ilya-klyuchnikov/buck,JoelMarcey/buck,siddhartharay007/buck,Heart2009/buck,k21/buck,vine/buck,rowillia/buck,bocon13/buck,robbertvanginkel/buck,shybovycha/buck,hgl888/buck,ilya-klyuchnikov/buck,OkBuilds/buck,lukw00/buck,OkBuilds/buck,romanoid/buck,Learn-Android-app/buck,artiya4u/buck,rowillia/buck,Heart2009/buck,daedric/buck,Learn-Android-app/buck,robbertvanginkel/buck,Dominator008/buck,janicduplessis/buck,LegNeato/buck,LegNeato/buck,1yvT0s/buck,neonichu/buck,LegNeato/buck,janicduplessis/buck,dsyang/buck,justinmuller/buck,dsyang/buck,Heart2009/buck,dushmis/buck,Addepar/buck,OkBuilds/buck,stuhood/buck,mikekap/buck,mikekap/buck,Dominator008/buck,shs96c/buck,Learn-Android-app/buck,bocon13/buck,rowillia/buck,pwz3n0/buck,Learn-Android-app/buck,MarkRunWu/buck,liuyang-li/buck,Addepar/buck,zhuxiaohao/buck,ilya-klyuchnikov/buck,grumpyjames/buck,LegNeato/buck,daedric/buck,pwz3n0/buck,daedric/buck,Addepar/buck,rhencke/buck,zhuxiaohao/buck,LegNeato/buck,stuhood/buck,siddhartharay007/buck,rhencke/buck,zhan-xiong/buck,shybovycha/buck,ilya-klyuchnikov/buck,davido/buck,Addepar/buck,ilya-klyuchnikov/buck,tgummerer/buck,davido/buck,pwz3n0/buck,ilya-klyuchnikov/buck,davido/buck,stuhood/buck,Addepar/buck,Distrotech/buck,daedric/buck,raviagarwal7/buck,mogers/buck,tgummerer/buck,dsyang/buck,janicduplessis/buck,nguyentruongtho/buck,vschs007/buck,brettwooldridge/buck,dsyang/buck,Dominator008/buck,liuyang-li/buck,shybovycha/buck,shs96c/buck,tgummerer/buck,zhan-xiong/buck,liuyang-li/buck,kageiit/buck,daedric/buck,justinmuller/buck,brettwooldridge/buck,LegNeato/buck,davido/buck,bocon13/buck,shybovycha/buck,illicitonion/buck,romanoid/buck,rhencke/buck,JoelMarcey/buck,rmaz/buck,daedric/buck,robbertvanginkel/buck,zpao/buck,JoelMarcey/buck,rmaz/buck,janicduplessis/buck,grumpyjames/buck,Heart2009/buck,dushmis/buck,k21/buck,nguyentruongtho/buck,mnuessler/buck,rmaz/buck,darkforestzero/buck,k21/buck,mnuessler/buck,sdwilsh/buck,raviagarwal7/buck,vine/buck,janicduplessis/buck,lukw00/buck,rmaz/buck,darkforestzero/buck,pwz3n0/buck,JoelMarcey/buck,vine/buck,romanoid/buck,dsyang/buck,sdwilsh/buck,rmaz/buck,clonetwin26/buck,tgummerer/buck,kageiit/buck,justinmuller/buck,brettwooldridge/buck,lukw00/buck,darkforestzero/buck,JoelMarcey/buck,k21/buck,rowillia/buck,illicitonion/buck,shs96c/buck,nguyentruongtho/buck,justinmuller/buck,illicitonion/buck,shs96c/buck,MarkRunWu/buck,luiseduardohdbackup/buck,hgl888/buck,robbertvanginkel/buck,mnuessler/buck,vschs007/buck,darkforestzero/buck,davido/buck,JoelMarcey/buck,Learn-Android-app/buck,OkBuilds/buck,sdwilsh/buck,marcinkwiatkowski/buck,tgummerer/buck,nguyentruongtho/buck,rmaz/buck,k21/buck,clonetwin26/buck,romanoid/buck,1yvT0s/buck,zpao/buck,clonetwin26/buck,pwz3n0/buck,justinmuller/buck,tgummerer/buck,sdwilsh/buck,janicduplessis/buck,davido/buck,vschs007/buck,mogers/buck,rowillia/buck,siddhartharay007/buck,mogers/buck,grumpyjames/buck,dushmis/buck,lukw00/buck,LegNeato/buck,sdwilsh/buck,zhan-xiong/buck,vine/buck,MarkRunWu/buck,davido/buck,grumpyjames/buck,marcinkwiatkowski/buck,artiya4u/buck,clonetwin26/buck,brettwooldridge/buck,vschs007/buck,zpao/buck,darkforestzero/buck,bocon13/buck,vschs007/buck,marcinkwiatkowski/buck,neonichu/buck,artiya4u/buck,siddhartharay007/buck,zhan-xiong/buck,stuhood/buck,robbertvanginkel/buck,SeleniumHQ/buck,zhan-xiong/buck,daedric/buck,LegNeato/buck,Dominator008/buck,neonichu/buck,brettwooldridge/buck,JoelMarcey/buck,darkforestzero/buck,Dominator008/buck,vschs007/buck,stuhood/buck,brettwooldridge/buck,lukw00/buck,shs96c/buck,shybovycha/buck,vschs007/buck,ilya-klyuchnikov/buck,robbertvanginkel/buck,pwz3n0/buck,Heart2009/buck,sdwilsh/buck,hgl888/buck,shs96c/buck,Dominator008/buck,brettwooldridge/buck,Distrotech/buck,daedric/buck,tgummerer/buck,marcinkwiatkowski/buck,janicduplessis/buck,mnuessler/buck,zhan-xiong/buck,justinmuller/buck,OkBuilds/buck,lukw00/buck,1yvT0s/buck,SeleniumHQ/buck,artiya4u/buck,bocon13/buck,k21/buck,davido/buck,zhan-xiong/buck,dpursehouse/buck,OkBuilds/buck,Learn-Android-app/buck,lukw00/buck,justinmuller/buck,k21/buck,Dominator008/buck,stuhood/buck,darkforestzero/buck,shybovycha/buck,grumpyjames/buck,marcinkwiatkowski/buck,zpao/buck,marcinkwiatkowski/buck,zhan-xiong/buck,davido/buck,pwz3n0/buck,mogers/buck,zhuxiaohao/buck,raviagarwal7/buck,daedric/buck,illicitonion/buck,dpursehouse/buck,stuhood/buck,bocon13/buck,siddhartharay007/buck,shs96c/buck,daedric/buck,neonichu/buck,lukw00/buck,illicitonion/buck,clonetwin26/buck,SeleniumHQ/buck,artiya4u/buck,shybovycha/buck,romanoid/buck,JoelMarcey/buck,liuyang-li/buck,ilya-klyuchnikov/buck,Distrotech/buck,illicitonion/buck,clonetwin26/buck,Addepar/buck,Addepar/buck,vine/buck,vschs007/buck,raviagarwal7/buck,Distrotech/buck,MarkRunWu/buck,janicduplessis/buck,justinmuller/buck,mogers/buck,bocon13/buck,davido/buck,mikekap/buck,bocon13/buck,Distrotech/buck,illicitonion/buck,rowillia/buck,neonichu/buck,JoelMarcey/buck,facebook/buck,Addepar/buck,tgummerer/buck,stuhood/buck,Distrotech/buck,dpursehouse/buck,luiseduardohdbackup/buck,robbertvanginkel/buck,Heart2009/buck,darkforestzero/buck,romanoid/buck,dushmis/buck,robbertvanginkel/buck,janicduplessis/buck,rowillia/buck,pwz3n0/buck,shybovycha/buck,romanoid/buck,siddhartharay007/buck,facebook/buck,kageiit/buck,sdwilsh/buck,justinmuller/buck,vschs007/buck,MarkRunWu/buck,raviagarwal7/buck,shs96c/buck,artiya4u/buck,dpursehouse/buck,dsyang/buck,sdwilsh/buck,liuyang-li/buck,grumpyjames/buck,k21/buck,OkBuilds/buck,MarkRunWu/buck,bocon13/buck,mogers/buck,vine/buck,rmaz/buck,grumpyjames/buck,OkBuilds/buck,rmaz/buck,dushmis/buck,mogers/buck,kageiit/buck,clonetwin26/buck,liuyang-li/buck,MarkRunWu/buck,zhuxiaohao/buck,marcinkwiatkowski/buck,stuhood/buck,JoelMarcey/buck,facebook/buck,Distrotech/buck,zpao/buck,daedric/buck,rhencke/buck,dsyang/buck,vine/buck,Addepar/buck,shs96c/buck,Addepar/buck,facebook/buck,tgummerer/buck,kageiit/buck,luiseduardohdbackup/buck,grumpyjames/buck,shybovycha/buck,vine/buck,bocon13/buck,raviagarwal7/buck,clonetwin26/buck,zhan-xiong/buck,dpursehouse/buck,clonetwin26/buck,clonetwin26/buck,Distrotech/buck,darkforestzero/buck,brettwooldridge/buck,rowillia/buck,rhencke/buck,ilya-klyuchnikov/buck,dsyang/buck,raviagarwal7/buck,darkforestzero/buck,rhencke/buck,marcinkwiatkowski/buck,mogers/buck,rhencke/buck,shybovycha/buck,Heart2009/buck,ilya-klyuchnikov/buck,k21/buck,luiseduardohdbackup/buck,OkBuilds/buck,rmaz/buck,shs96c/buck,zhuxiaohao/buck,raviagarwal7/buck,zhuxiaohao/buck,Addepar/buck,marcinkwiatkowski/buck,SeleniumHQ/buck,JoelMarcey/buck,Distrotech/buck,rhencke/buck,rhencke/buck,marcinkwiatkowski/buck,tgummerer/buck,robbertvanginkel/buck,k21/buck,vschs007/buck,grumpyjames/buck,mikekap/buck,Distrotech/buck,marcinkwiatkowski/buck,JoelMarcey/buck,artiya4u/buck,Distrotech/buck,raviagarwal7/buck,dushmis/buck,Addepar/buck,clonetwin26/buck,luiseduardohdbackup/buck,dushmis/buck,liuyang-li/buck,davido/buck,Dominator008/buck,sdwilsh/buck,luiseduardohdbackup/buck,zhuxiaohao/buck,mikekap/buck,lukw00/buck,neonichu/buck,mnuessler/buck,shybovycha/buck,shybovycha/buck,justinmuller/buck,rowillia/buck,rmaz/buck,siddhartharay007/buck,shybovycha/buck,mikekap/buck,illicitonion/buck,tgummerer/buck,zhuxiaohao/buck,romanoid/buck,Addepar/buck,raviagarwal7/buck,luiseduardohdbackup/buck,SeleniumHQ/buck,1yvT0s/buck,davido/buck,brettwooldridge/buck,Heart2009/buck,vschs007/buck,JoelMarcey/buck,hgl888/buck,bocon13/buck,janicduplessis/buck,MarkRunWu/buck,LegNeato/buck,neonichu/buck,liuyang-li/buck,nguyentruongtho/buck,rhencke/buck,k21/buck,lukw00/buck,dsyang/buck,SeleniumHQ/buck,SeleniumHQ/buck,shs96c/buck,daedric/buck,dsyang/buck,sdwilsh/buck,robbertvanginkel/buck,dushmis/buck