isalpha is not great for UTF-8
isalpha is not great for UTF-8

When checking for a drive letter on windows, instead of using
isalpha(), it is better to just check for a..z and A..Z, I think,
particularly because the MS isalpha implementation appears to
assert when given an 0xFF byte.

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