checkout test: ignore unstaged case-changing renames
checkout test: ignore unstaged case-changing renames

On Windows, you might sloppily rewrite a file (or have a sloppy
text editor that does it for you) and accidentally change its
case.  (eg, "README" -> "readme").  Git ignores this accidental
case changing rename during checkout and will happily write the
new content to the file despite the name change.  We should, too.

kissthink/libgit2,spraints/libgit2,skabel/manguse,linquize/libgit2,linquize/libgit2,linquize/libgit2,jeffhostetler/public_libgit2,kenprice/libgit2,kenprice/libgit2,mingyaaaa/libgit2,kenprice/libgit2,mcanthony/libgit2,nokiddin/libgit2,stewid/libgit2,amyvmiwei/libgit2,yongthecoder/libgit2,spraints/libgit2,Tousiph/Demo1,yosefhackmon/libgit2,claudelee/libgit2,mrksrm/Mingijura,mcanthony/libgit2,yosefhackmon/libgit2,whoisj/libgit2,mrksrm/Mingijura,Corillian/libgit2,yongthecoder/libgit2,oaastest/libgit2,sygool/libgit2,leoyanggit/libgit2,since2014/libgit2,skabel/manguse,linquize/libgit2,iankronquist/libgit2,oaastest/libgit2,sim0629/libgit2,kissthink/libgit2,mingyaaaa/libgit2,Tousiph/Demo1,magnus98/TEST,t0xicCode/libgit2,yosefhackmon/libgit2,since2014/libgit2,saurabhsuniljain/libgit2,whoisj/libgit2,claudelee/libgit2,falqas/libgit2,oaastest/libgit2,mhp/libgit2,since2014/libgit2,sygool/libgit2,joshtriplett/libgit2,spraints/libgit2,stewid/libgit2,JIghtuse/libgit2,sim0629/libgit2,sygool/libgit2,MrHacky/libgit2,mrksrm/Mingijura,skabel/manguse,mingyaaaa/libgit2,saurabhsuniljain/libgit2,leoyanggit/libgit2,iankronquist/libgit2,amyvmiwei/libgit2,saurabhsuniljain/libgit2,yongthecoder/libgit2,since2014/libgit2,dleehr/libgit2,kissthink/libgit2,claudelee/libgit2,oaastest/libgit2,Corillian/libgit2,dleehr/libgit2,stewid/libgit2,ardumont/libgit2,spraints/libgit2,JIghtuse/libgit2,Tousiph/Demo1,skabel/manguse,mingyaaaa/libgit2,falqas/libgit2,kenprice/libgit2,mrksrm/Mingijura,amyvmiwei/libgit2,JIghtuse/libgit2,iankronquist/libgit2,KTXSoftware/libgit2,claudelee/libgit2,kenprice/libgit2,joshtriplett/libgit2,JIghtuse/libgit2,sygool/libgit2,t0xicCode/libgit2,magnus98/TEST,whoisj/libgit2,iankronquist/libgit2,jeffhostetler/public_libgit2,kissthink/libgit2,jeffhostetler/public_libgit2,mrksrm/Mingijura,since2014/libgit2,sim0629/libgit2,skabel/manguse,leoyanggit/libgit2,mingyaaaa/libgit2,mcanthony/libgit2,sim0629/libgit2,oaastest/libgit2,mcanthony/libgit2,sim0629/libgit2,skabel/manguse,MrHacky/libgit2,magnus98/TEST,nokiddin/libgit2,ardumont/libgit2,MrHacky/libgit2,amyvmiwei/libgit2,linquize/libgit2,Corillian/libgit2,stewid/libgit2,jeffhostetler/public_libgit2,jeffhostetler/public_libgit2,falqas/libgit2,claudelee/libgit2,mhp/libgit2,MrHacky/libgit2,Corillian/libgit2,iankronquist/libgit2,dleehr/libgit2,stewid/libgit2,whoisj/libgit2,stewid/libgit2,Corillian/libgit2,falqas/libgit2,mhp/libgit2,kenprice/libgit2,yosefhackmon/libgit2,mcanthony/libgit2,leoyanggit/libgit2,MrHacky/libgit2,spraints/libgit2,Tousiph/Demo1,falqas/libgit2,ardumont/libgit2,dleehr/libgit2,whoisj/libgit2,Corillian/libgit2,KTXSoftware/libgit2,KTXSoftware/libgit2,yongthecoder/libgit2,since2014/libgit2,magnus98/TEST,joshtriplett/libgit2,KTXSoftware/libgit2,saurabhsuniljain/libgit2,KTXSoftware/libgit2,joshtriplett/libgit2,mhp/libgit2,MrHacky/libgit2,ardumont/libgit2,leoyanggit/libgit2,claudelee/libgit2,joshtriplett/libgit2,ardumont/libgit2,leoyanggit/libgit2,saurabhsuniljain/libgit2,JIghtuse/libgit2,dleehr/libgit2,jeffhostetler/public_libgit2,Tousiph/Demo1,magnus98/TEST,nokiddin/libgit2,joshtriplett/libgit2,linquize/libgit2,mrksrm/Mingijura,KTXSoftware/libgit2,dleehr/libgit2,kissthink/libgit2,Tousiph/Demo1,yongthecoder/libgit2,iankronquist/libgit2,yongthecoder/libgit2,t0xicCode/libgit2,ardumont/libgit2,t0xicCode/libgit2,yosefhackmon/libgit2,oaastest/libgit2,magnus98/TEST,whoisj/libgit2,sygool/libgit2,amyvmiwei/libgit2,saurabhsuniljain/libgit2,JIghtuse/libgit2,spraints/libgit2,yosefhackmon/libgit2,sygool/libgit2,kissthink/libgit2,t0xicCode/libgit2,nokiddin/libgit2,nokiddin/libgit2,mcanthony/libgit2,mhp/libgit2,mhp/libgit2,mingyaaaa/libgit2,sim0629/libgit2,falqas/libgit2,nokiddin/libgit2,t0xicCode/libgit2,amyvmiwei/libgit2