Fix failure in win32_find_git_in_registry() when UAC is turned on
Fix failure in win32_find_git_in_registry() when UAC is turned on

Demand read only access to registry key instead of full access.
This might happen in Windows Vista and later.

yongthecoder/libgit2,amyvmiwei/libgit2,Tousiph/Demo1,saurabhsuniljain/libgit2,MrHacky/libgit2,kenprice/libgit2,MrHacky/libgit2,stewid/libgit2,sygool/libgit2,kenprice/libgit2,jflesch/libgit2-mariadb,mingyaaaa/libgit2,iankronquist/libgit2,skabel/manguse,jflesch/libgit2-mariadb,rcorre/libgit2,chiayolin/libgit2,whoisj/libgit2,ardumont/libgit2,leoyanggit/libgit2,swisspol/DEMO-libgit2,linquize/libgit2,swisspol/DEMO-libgit2,raybrad/libit2,ardumont/libgit2,chiayolin/libgit2,ardumont/libgit2,falqas/libgit2,mcanthony/libgit2,kenprice/libgit2,mhp/libgit2,joshtriplett/libgit2,spraints/libgit2,mcanthony/libgit2,Tousiph/Demo1,rcorre/libgit2,swisspol/DEMO-libgit2,saurabhsuniljain/libgit2,KTXSoftware/libgit2,rcorre/libgit2,iankronquist/libgit2,Corillian/libgit2,Corillian/libgit2,sim0629/libgit2,since2014/libgit2,mcanthony/libgit2,linquize/libgit2,mingyaaaa/libgit2,claudelee/libgit2,amyvmiwei/libgit2,raybrad/libit2,MrHacky/libgit2,KTXSoftware/libgit2,nokiddin/libgit2,linquize/libgit2,nokiddin/libgit2,t0xicCode/libgit2,nokiddin/libgit2,saurabhsuniljain/libgit2,joshtriplett/libgit2,maxiaoqian/libgit2,t0xicCode/libgit2,rcorre/libgit2,magnus98/TEST,MrHacky/libgit2,since2014/libgit2,joshtriplett/libgit2,kissthink/libgit2,magnus98/TEST,KTXSoftware/libgit2,sygool/libgit2,linquize/libgit2,Tousiph/Demo1,jeffhostetler/public_libgit2,yosefhackmon/libgit2,yosefhackmon/libgit2,mingyaaaa/libgit2,rcorre/libgit2,oaastest/libgit2,saurabhsuniljain/libgit2,spraints/libgit2,KTXSoftware/libgit2,mcanthony/libgit2,oaastest/libgit2,dleehr/libgit2,jflesch/libgit2-mariadb,since2014/libgit2,leoyanggit/libgit2,JIghtuse/libgit2,leoyanggit/libgit2,mrksrm/Mingijura,leoyanggit/libgit2,whoisj/libgit2,since2014/libgit2,falqas/libgit2,swisspol/DEMO-libgit2,stewid/libgit2,claudelee/libgit2,Snazz2001/libgit2,Snazz2001/libgit2,Snazz2001/libgit2,amyvmiwei/libgit2,stewid/libgit2,jeffhostetler/public_libgit2,kissthink/libgit2,dleehr/libgit2,oaastest/libgit2,mrksrm/Mingijura,t0xicCode/libgit2,ardumont/libgit2,sim0629/libgit2,skabel/manguse,t0xicCode/libgit2,yongthecoder/libgit2,claudelee/libgit2,MrHacky/libgit2,JIghtuse/libgit2,JIghtuse/libgit2,iankronquist/libgit2,Aorjoa/libgit2_maked_lib,amyvmiwei/libgit2,raybrad/libit2,mingyaaaa/libgit2,linquize/libgit2,MrHacky/libgit2,mrksrm/Mingijura,maxiaoqian/libgit2,maxiaoqian/libgit2,yosefhackmon/libgit2,iankronquist/libgit2,saurabhsuniljain/libgit2,skabel/manguse,magnus98/TEST,Tousiph/Demo1,dleehr/libgit2,swisspol/DEMO-libgit2,sygool/libgit2,kissthink/libgit2,iankronquist/libgit2,whoisj/libgit2,magnus98/TEST,Tousiph/Demo1,yongthecoder/libgit2,linquize/libgit2,Snazz2001/libgit2,nokiddin/libgit2,Corillian/libgit2,spraints/libgit2,Snazz2001/libgit2,joshtriplett/libgit2,maxiaoqian/libgit2,falqas/libgit2,kissthink/libgit2,since2014/libgit2,t0xicCode/libgit2,mhp/libgit2,maxiaoqian/libgit2,Corillian/libgit2,mhp/libgit2,JIghtuse/libgit2,stewid/libgit2,oaastest/libgit2,mhp/libgit2,since2014/libgit2,KTXSoftware/libgit2,magnus98/TEST,claudelee/libgit2,swisspol/DEMO-libgit2,Tousiph/Demo1,Aorjoa/libgit2_maked_lib,magnus98/TEST,kenprice/libgit2,falqas/libgit2,jeffhostetler/public_libgit2,sim0629/libgit2,mrksrm/Mingijura,oaastest/libgit2,jflesch/libgit2-mariadb,rcorre/libgit2,nokiddin/libgit2,chiayolin/libgit2,skabel/manguse,mrksrm/Mingijura,yosefhackmon/libgit2,Aorjoa/libgit2_maked_lib,ardumont/libgit2,skabel/manguse,mhp/libgit2,Snazz2001/libgit2,dleehr/libgit2,jflesch/libgit2-mariadb,mingyaaaa/libgit2,whoisj/libgit2,Aorjoa/libgit2_maked_lib,jeffhostetler/public_libgit2,jflesch/libgit2-mariadb,falqas/libgit2,chiayolin/libgit2,kenprice/libgit2,mhp/libgit2,raybrad/libit2,nokiddin/libgit2,whoisj/libgit2,sim0629/libgit2,skabel/manguse,falqas/libgit2,claudelee/libgit2,KTXSoftware/libgit2,kissthink/libgit2,sim0629/libgit2,kenprice/libgit2,stewid/libgit2,yongthecoder/libgit2,oaastest/libgit2,mrksrm/Mingijura,kissthink/libgit2,mingyaaaa/libgit2,yosefhackmon/libgit2,yongthecoder/libgit2,sygool/libgit2,yongthecoder/libgit2,amyvmiwei/libgit2,joshtriplett/libgit2,saurabhsuniljain/libgit2,whoisj/libgit2,leoyanggit/libgit2,spraints/libgit2,JIghtuse/libgit2,raybrad/libit2,yosefhackmon/libgit2,claudelee/libgit2,dleehr/libgit2,dleehr/libgit2,jeffhostetler/public_libgit2,stewid/libgit2,jeffhostetler/public_libgit2,spraints/libgit2,amyvmiwei/libgit2,leoyanggit/libgit2,JIghtuse/libgit2,sygool/libgit2,chiayolin/libgit2,mcanthony/libgit2,spraints/libgit2,sygool/libgit2,Corillian/libgit2,Aorjoa/libgit2_maked_lib,ardumont/libgit2,chiayolin/libgit2,Corillian/libgit2,maxiaoqian/libgit2,sim0629/libgit2,joshtriplett/libgit2,t0xicCode/libgit2,mcanthony/libgit2,iankronquist/libgit2