filebuf: failing test for leaving the lockfile when failing to rename
filebuf: failing test for leaving the lockfile when failing to rename

When we fail to rename, we currently leave the lockfile laying
around. This shows that behaviour.

ardumont/libgit2,kissthink/libgit2,yosefhackmon/libgit2,since2014/libgit2,stewid/libgit2,dleehr/libgit2,dleehr/libgit2,sygool/libgit2,linquize/libgit2,spraints/libgit2,KTXSoftware/libgit2,mcanthony/libgit2,saurabhsuniljain/libgit2,falqas/libgit2,kenprice/libgit2,JIghtuse/libgit2,dleehr/libgit2,stewid/libgit2,ardumont/libgit2,yongthecoder/libgit2,sygool/libgit2,Corillian/libgit2,since2014/libgit2,JIghtuse/libgit2,stewid/libgit2,kissthink/libgit2,JIghtuse/libgit2,mhp/libgit2,Tousiph/Demo1,joshtriplett/libgit2,jeffhostetler/public_libgit2,skabel/manguse,jeffhostetler/public_libgit2,mcanthony/libgit2,Corillian/libgit2,iankronquist/libgit2,JIghtuse/libgit2,spraints/libgit2,linquize/libgit2,yongthecoder/libgit2,skabel/manguse,mcanthony/libgit2,sim0629/libgit2,spraints/libgit2,skabel/manguse,yosefhackmon/libgit2,stewid/libgit2,magnus98/TEST,oaastest/libgit2,mrksrm/Mingijura,iankronquist/libgit2,spraints/libgit2,yosefhackmon/libgit2,iankronquist/libgit2,kenprice/libgit2,sygool/libgit2,sim0629/libgit2,dleehr/libgit2,falqas/libgit2,ardumont/libgit2,KTXSoftware/libgit2,jeffhostetler/public_libgit2,Tousiph/Demo1,since2014/libgit2,JIghtuse/libgit2,falqas/libgit2,mhp/libgit2,claudelee/libgit2,mrksrm/Mingijura,linquize/libgit2,Corillian/libgit2,mhp/libgit2,dleehr/libgit2,claudelee/libgit2,sim0629/libgit2,since2014/libgit2,claudelee/libgit2,iankronquist/libgit2,jeffhostetler/public_libgit2,sygool/libgit2,claudelee/libgit2,magnus98/TEST,oaastest/libgit2,iankronquist/libgit2,magnus98/TEST,skabel/manguse,kenprice/libgit2,KTXSoftware/libgit2,dleehr/libgit2,iankronquist/libgit2,yongthecoder/libgit2,Tousiph/Demo1,Corillian/libgit2,leoyanggit/libgit2,leoyanggit/libgit2,yosefhackmon/libgit2,stewid/libgit2,magnus98/TEST,Corillian/libgit2,saurabhsuniljain/libgit2,KTXSoftware/libgit2,mcanthony/libgit2,stewid/libgit2,linquize/libgit2,yosefhackmon/libgit2,falqas/libgit2,mrksrm/Mingijura,saurabhsuniljain/libgit2,mhp/libgit2,joshtriplett/libgit2,skabel/manguse,spraints/libgit2,Tousiph/Demo1,sygool/libgit2,kissthink/libgit2,sim0629/libgit2,mrksrm/Mingijura,yongthecoder/libgit2,linquize/libgit2,mrksrm/Mingijura,yongthecoder/libgit2,KTXSoftware/libgit2,magnus98/TEST,JIghtuse/libgit2,joshtriplett/libgit2,mrksrm/Mingijura,leoyanggit/libgit2,kenprice/libgit2,Corillian/libgit2,oaastest/libgit2,since2014/libgit2,yongthecoder/libgit2,jeffhostetler/public_libgit2,claudelee/libgit2,since2014/libgit2,spraints/libgit2,oaastest/libgit2,kenprice/libgit2,ardumont/libgit2,magnus98/TEST,kenprice/libgit2,mhp/libgit2,oaastest/libgit2,kissthink/libgit2,leoyanggit/libgit2,falqas/libgit2,oaastest/libgit2,KTXSoftware/libgit2,Tousiph/Demo1,ardumont/libgit2,mcanthony/libgit2,leoyanggit/libgit2,claudelee/libgit2,jeffhostetler/public_libgit2,sygool/libgit2,yosefhackmon/libgit2,sim0629/libgit2,leoyanggit/libgit2,ardumont/libgit2,falqas/libgit2,skabel/manguse,saurabhsuniljain/libgit2,saurabhsuniljain/libgit2,kissthink/libgit2,Tousiph/Demo1,joshtriplett/libgit2,mcanthony/libgit2,joshtriplett/libgit2,mhp/libgit2,sim0629/libgit2,joshtriplett/libgit2,saurabhsuniljain/libgit2,linquize/libgit2,kissthink/libgit2