Fix bugs reported by Robert Faught:
Fix bugs reported by Robert Faught:

(unw_get_save_loc): Handle b6 like b7.
(unw_get_save_loc): Fix typo: "if (!sloc)" was meant to be "if (!loc)".

(Logical change 1.21)

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