Document that a local unw_resume() across threads results in undefined behavior.
Document that a local unw_resume() across threads results in undefined behavior.

(Logical change 1.59)

Chilledheart/libunwind,lat/libunwind,fdoray/libunwind,cms-externals/libunwind,tony/libunwind,dagar/libunwind,CyanogenMod/android_external_libunwind,dreal-deps/libunwind,atanasyan/libunwind-android,joyent/libunwind,evaautomation/libunwind,rantala/libunwind,android-ia/platform_external_libunwind,0xlab/0xdroid-external_libunwind,wdv4758h/libunwind,yuyichao/libunwind,wdv4758h/libunwind,Chilledheart/libunwind,lat/libunwind,adsharma/libunwind,fdoray/libunwind,bo-on-software/libunwind,frida/libunwind,fillexen/libunwind,rogwfu/libunwind,maltek/platform_external_libunwind,lat/libunwind,pathscale/libunwind,tony/libunwind,jrmuizel/libunwind,tkelman/libunwind,zliu2014/libunwind-tilegx,dreal-deps/libunwind,geekboxzone/lollipop_external_libunwind,cloudius-systems/libunwind,0xlab/0xdroid-external_libunwind,adsharma/libunwind,SyndicateRogue/libunwind,geekboxzone/mmallow_external_libunwind,rntz/libunwind,dropbox/libunwind,tronical/libunwind,igprof/libunwind,cloudius-systems/libunwind,martyone/libunwind,fillexen/libunwind,joyent/libunwind,rntz/libunwind,CyanogenMod/android_external_libunwind,rntz/libunwind,vegard/libunwind,tkelman/libunwind,CyanogenMod/android_external_libunwind,Chilledheart/libunwind,mpercy/libunwind,DroidSim/platform_external_libunwind,krytarowski/libunwind,adsharma/libunwind,krytarowski/libunwind,yuyichao/libunwind,libunwind/libunwind,SyndicateRogue/libunwind,unkadoug/libunwind,atanasyan/libunwind-android,yuyichao/libunwind,Keno/libunwind,mpercy/libunwind,djwatson/libunwind,android-ia/platform_external_libunwind,dreal-deps/libunwind,geekboxzone/mmallow_external_libunwind,zeldin/platform_external_libunwind,jrmuizel/libunwind,krytarowski/libunwind,atanasyan/libunwind-android,rogwfu/libunwind,cloudius-systems/libunwind,vegard/libunwind,vegard/libunwind,tronical/libunwind,frida/libunwind,project-zerus/libunwind,androidarmv6/android_external_libunwind,cms-externals/libunwind,project-zerus/libunwind,tony/libunwind,rantala/libunwind,tkelman/libunwind,DroidSim/platform_external_libunwind,cms-externals/libunwind,frida/libunwind,ehsan/libunwind,zliu2014/libunwind-tilegx,geekboxzone/lollipop_external_libunwind,project-zerus/libunwind,atanasyan/libunwind,rantala/libunwind,maltek/platform_external_libunwind,igprof/libunwind,olibc/libunwind,libunwind/libunwind,bo-on-software/libunwind,tronical/libunwind,evaautomation/libunwind,zeldin/platform_external_libunwind,fdoray/libunwind,mpercy/libunwind,jrmuizel/libunwind,geekboxzone/lollipop_external_libunwind,DroidSim/platform_external_libunwind,unkadoug/libunwind,zeldin/platform_external_libunwind,androidarmv6/android_external_libunwind,joyent/libunwind,dagar/libunwind,djwatson/libunwind,vtjnash/libunwind,0xlab/0xdroid-external_libunwind,atanasyan/libunwind,dropbox/libunwind,djwatson/libunwind,olibc/libunwind,Keno/libunwind,rogwfu/libunwind,pathscale/libunwind,geekboxzone/mmallow_external_libunwind,dagar/libunwind,atanasyan/libunwind,ehsan/libunwind,igprof/libunwind,SyndicateRogue/libunwind,maltek/platform_external_libunwind,ehsan/libunwind,androidarmv6/android_external_libunwind,wdv4758h/libunwind,martyone/libunwind,zliu2014/libunwind-tilegx,pathscale/libunwind,olibc/libunwind,android-ia/platform_external_libunwind,vtjnash/libunwind,vtjnash/libunwind,dropbox/libunwind,bo-on-software/libunwind,Keno/libunwind,fillexen/libunwind,martyone/libunwind,unkadoug/libunwind,libunwind/libunwind,evaautomation/libunwind