Clarify comment about proc_info.
Clarify comment about proc_info.

(Logical change 1.4)

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