Simplify the check for ptrace operations.
Simplify the check for ptrace operations.

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