fmbt-gt: fix file closing errors on exit
fmbt-gt: fix file closing errors on exit

CosminNiculae/fMBT,violep01/fMBT,mlq/fMBT,violep01/fMBT,pablovirolainen/fMBT,violep01/fMBT,giantpinkwalrus/fMBT,heivi/fMBT,heivi/fMBT,yoonkiss/fMBT,CosminNiculae/fMBT,01org/fMBT,rseymour/fMBT,mixu-/fMBT,yoonkiss/fMBT,01org/fMBT,rseymour/fMBT,heivi/fMBT,acozzette/fMBT,pombreda/fMBT,OMKR/fMBT,pombreda/fMBT,rseymour/fMBT,CosminNiculae/fMBT,yoonkiss/fMBT,yoonkiss/fMBT,mixu-/fMBT,giantpinkwalrus/fMBT,pombreda/fMBT,pombreda/fMBT,pombreda/fMBT,01org/fMBT,rseymour/fMBT,mixu-/fMBT,mlq/fMBT,acozzette/fMBT,pyykkis/fMBT,pablovirolainen/fMBT,acozzette/fMBT,pablovirolainen/fMBT,mixu-/fMBT,pablovirolainen/fMBT,heivi/fMBT,heivi/fMBT,violep01/fMBT,acozzette/fMBT,rseymour/fMBT,yoonkiss/fMBT,pombreda/fMBT,OMKR/fMBT,CosminNiculae/fMBT,pablovirolainen/fMBT,01org/fMBT,pablovirolainen/fMBT,CosminNiculae/fMBT,giantpinkwalrus/fMBT,CosminNiculae/fMBT,rseymour/fMBT,OMKR/fMBT,01org/fMBT,pombreda/fMBT,pyykkis/fMBT,rseymour/fMBT,acozzette/fMBT,mixu-/fMBT,OMKR/fMBT,pyykkis/fMBT,heivi/fMBT,mlq/fMBT,pyykkis/fMBT,mlq/fMBT,violep01/fMBT,mlq/fMBT,pyykkis/fMBT,mlq/fMBT,OMKR/fMBT,mlq/fMBT,pyykkis/fMBT,giantpinkwalrus/fMBT,OMKR/fMBT,heivi/fMBT,giantpinkwalrus/fMBT,CosminNiculae/fMBT