Fixed build tool detection logic.
Fixed build tool detection logic.

cheng-z/xenadmin,geosharath/xenadmin,minli1/xenadmin,cheng--zhang/xenadmin,qlw/xenadmin,MihaelaStoica/xenadmin,letsboogey/xenadmin,MihaelaStoica/xenadmin,cheng-z/xenadmin,qlw/xenadmin,geosharath/xenadmin,cheng-z/xenadmin,geosharath/xenadmin,GaborApatiNagy/xenadmin,agimofcarmen/xenadmin,stephen-turner/xenadmin,geosharath/xenadmin,GaborApatiNagy/xenadmin,xenserver/xenadmin,ushamandya/xenadmin,huizh/xenadmin,ushamandya/xenadmin,qlw/xenadmin,kc284/xenadmin,robhoes/xenadmin,letsboogey/xenadmin,kc284/xenadmin,cheng--zhang/xenadmin,minli1/xenadmin,stephen-turner/xenadmin,minli1/xenadmin,agimofcarmen/xenadmin,jijiang/xenadmin,xenserver/xenadmin,robhoes/xenadmin,huizh/xenadmin,huizh/xenadmin,Frezzle/xenadmin,GaborApatiNagy/xenadmin,Frezzle/xenadmin,qlw/xenadmin,minli1/xenadmin,Frezzle/xenadmin,minli1/xenadmin,GaborApatiNagy/xenadmin,minli1/xenadmin,robhoes/xenadmin,geosharath/xenadmin,robhoes/xenadmin,cheng--zhang/xenadmin,cheng-z/xenadmin,cheng-z/xenadmin,kc284/xenadmin,agimofcarmen/xenadmin,ushamandya/xenadmin,MihaelaStoica/xenadmin,Frezzle/xenadmin,stephen-turner/xenadmin,GaborApatiNagy/xenadmin,huizh/xenadmin,geosharath/xenadmin,stephen-turner/xenadmin,xenserver/xenadmin,stephen-turner/xenadmin,GaborApatiNagy/xenadmin,robhoes/xenadmin,jijiang/xenadmin,Frezzle/xenadmin,jijiang/xenadmin,letsboogey/xenadmin,letsboogey/xenadmin,kc284/xenadmin,jijiang/xenadmin,letsboogey/xenadmin,cheng--zhang/xenadmin,agimofcarmen/xenadmin,jijiang/xenadmin,agimofcarmen/xenadmin,robhoes/xenadmin,huizh/xenadmin,jijiang/xenadmin,ushamandya/xenadmin,cheng--zhang/xenadmin,Frezzle/xenadmin,MihaelaStoica/xenadmin,letsboogey/xenadmin,MihaelaStoica/xenadmin,qlw/xenadmin,kc284/xenadmin,ushamandya/xenadmin,stephen-turner/xenadmin,cheng-z/xenadmin,MihaelaStoica/xenadmin,cheng--zhang/xenadmin,huizh/xenadmin,ushamandya/xenadmin