is_empty_dir (wi32): cope with empty mount points
is_empty_dir (wi32): cope with empty mount points

FindFirstFile will fail with INVALID_HANDLE_VALUE if there are no
children to the given path, which can happen if the given path is a
file (and obviously has no children) or if the given path is an empty
mount point.  (Most directories have at least directory entries '.'
and '..', but ridiculously another volume mounted in another drive
letter's path space do not, and thus have nothing to enumerate.)

If FindFirstFile fails, check if this is a directory-like thing
(a mount point).

sygool/libgit2,mingyaaaa/libgit2,Tousiph/Demo1,amyvmiwei/libgit2,ardumont/libgit2,kenprice/libgit2,dleehr/libgit2,magnus98/TEST,swisspol/DEMO-libgit2,whoisj/libgit2,falqas/libgit2,Corillian/libgit2,leoyanggit/libgit2,Snazz2001/libgit2,nokiddin/libgit2,mcanthony/libgit2,maxiaoqian/libgit2,oaastest/libgit2,jeffhostetler/public_libgit2,rcorre/libgit2,maxiaoqian/libgit2,joshtriplett/libgit2,dleehr/libgit2,falqas/libgit2,Tousiph/Demo1,swisspol/DEMO-libgit2,raybrad/libit2,rcorre/libgit2,skabel/manguse,JIghtuse/libgit2,since2014/libgit2,ardumont/libgit2,rcorre/libgit2,yosefhackmon/libgit2,iankronquist/libgit2,saurabhsuniljain/libgit2,whoisj/libgit2,Snazz2001/libgit2,leoyanggit/libgit2,mingyaaaa/libgit2,kissthink/libgit2,jeffhostetler/public_libgit2,chiayolin/libgit2,nokiddin/libgit2,iankronquist/libgit2,since2014/libgit2,stewid/libgit2,swisspol/DEMO-libgit2,mrksrm/Mingijura,Tousiph/Demo1,spraints/libgit2,ardumont/libgit2,iankronquist/libgit2,oaastest/libgit2,JIghtuse/libgit2,spraints/libgit2,kissthink/libgit2,KTXSoftware/libgit2,magnus98/TEST,Corillian/libgit2,JIghtuse/libgit2,dleehr/libgit2,mrksrm/Mingijura,yongthecoder/libgit2,claudelee/libgit2,mrksrm/Mingijura,since2014/libgit2,whoisj/libgit2,spraints/libgit2,joshtriplett/libgit2,kenprice/libgit2,sygool/libgit2,chiayolin/libgit2,leoyanggit/libgit2,linquize/libgit2,Corillian/libgit2,maxiaoqian/libgit2,stewid/libgit2,mingyaaaa/libgit2,falqas/libgit2,mcanthony/libgit2,mhp/libgit2,rcorre/libgit2,Snazz2001/libgit2,claudelee/libgit2,jflesch/libgit2-mariadb,yosefhackmon/libgit2,saurabhsuniljain/libgit2,JIghtuse/libgit2,mcanthony/libgit2,leoyanggit/libgit2,swisspol/DEMO-libgit2,sim0629/libgit2,since2014/libgit2,JIghtuse/libgit2,mhp/libgit2,raybrad/libit2,kenprice/libgit2,falqas/libgit2,Corillian/libgit2,since2014/libgit2,ardumont/libgit2,t0xicCode/libgit2,jeffhostetler/public_libgit2,saurabhsuniljain/libgit2,mhp/libgit2,yosefhackmon/libgit2,maxiaoqian/libgit2,saurabhsuniljain/libgit2,falqas/libgit2,yongthecoder/libgit2,amyvmiwei/libgit2,ardumont/libgit2,sim0629/libgit2,sygool/libgit2,Snazz2001/libgit2,magnus98/TEST,mrksrm/Mingijura,kissthink/libgit2,leoyanggit/libgit2,kissthink/libgit2,MrHacky/libgit2,dleehr/libgit2,sim0629/libgit2,Tousiph/Demo1,dleehr/libgit2,t0xicCode/libgit2,stewid/libgit2,Snazz2001/libgit2,kissthink/libgit2,kenprice/libgit2,linquize/libgit2,nokiddin/libgit2,joshtriplett/libgit2,iankronquist/libgit2,MrHacky/libgit2,MrHacky/libgit2,skabel/manguse,skabel/manguse,KTXSoftware/libgit2,Snazz2001/libgit2,skabel/manguse,linquize/libgit2,yongthecoder/libgit2,swisspol/DEMO-libgit2,amyvmiwei/libgit2,rcorre/libgit2,spraints/libgit2,oaastest/libgit2,yosefhackmon/libgit2,sygool/libgit2,iankronquist/libgit2,oaastest/libgit2,ardumont/libgit2,jflesch/libgit2-mariadb,t0xicCode/libgit2,claudelee/libgit2,sygool/libgit2,yongthecoder/libgit2,linquize/libgit2,magnus98/TEST,kenprice/libgit2,mhp/libgit2,skabel/manguse,iankronquist/libgit2,Corillian/libgit2,t0xicCode/libgit2,Corillian/libgit2,Tousiph/Demo1,oaastest/libgit2,whoisj/libgit2,Tousiph/Demo1,raybrad/libit2,spraints/libgit2,KTXSoftware/libgit2,mingyaaaa/libgit2,maxiaoqian/libgit2,kissthink/libgit2,mrksrm/Mingijura,spraints/libgit2,mhp/libgit2,oaastest/libgit2,chiayolin/libgit2,claudelee/libgit2,whoisj/libgit2,t0xicCode/libgit2,t0xicCode/libgit2,nokiddin/libgit2,KTXSoftware/libgit2,yongthecoder/libgit2,magnus98/TEST,sim0629/libgit2,jflesch/libgit2-mariadb,joshtriplett/libgit2,mcanthony/libgit2,linquize/libgit2,MrHacky/libgit2,MrHacky/libgit2,amyvmiwei/libgit2,jflesch/libgit2-mariadb,claudelee/libgit2,nokiddin/libgit2,kenprice/libgit2,mrksrm/Mingijura,sygool/libgit2,maxiaoqian/libgit2,jeffhostetler/public_libgit2,sim0629/libgit2,jflesch/libgit2-mariadb,whoisj/libgit2,nokiddin/libgit2,stewid/libgit2,joshtriplett/libgit2,yosefhackmon/libgit2,mhp/libgit2,stewid/libgit2,falqas/libgit2,skabel/manguse,rcorre/libgit2,KTXSoftware/libgit2,leoyanggit/libgit2,yosefhackmon/libgit2,MrHacky/libgit2,raybrad/libit2,mcanthony/libgit2,raybrad/libit2,yongthecoder/libgit2,swisspol/DEMO-libgit2,mingyaaaa/libgit2,since2014/libgit2,mcanthony/libgit2,mingyaaaa/libgit2,sim0629/libgit2,chiayolin/libgit2,saurabhsuniljain/libgit2,jeffhostetler/public_libgit2,jflesch/libgit2-mariadb,amyvmiwei/libgit2,chiayolin/libgit2,KTXSoftware/libgit2,claudelee/libgit2,amyvmiwei/libgit2,jeffhostetler/public_libgit2,joshtriplett/libgit2,dleehr/libgit2,stewid/libgit2,linquize/libgit2,chiayolin/libgit2,JIghtuse/libgit2,saurabhsuniljain/libgit2,magnus98/TEST