add some comments referring to cs_errno() on failure of some APIs
add some comments referring to cs_errno() on failure of some APIs

capturePointer/capstone,fvrmatteo/capstone,krytarowski/capstone,pombredanne/capstone,zneak/capstone,capturePointer/capstone,nplanel/capstone,dynm/capstone,krytarowski/capstone,bigendiansmalls/capstone,pranith/capstone,NeilBryant/capstone,bigendiansmalls/capstone,bowlofstew/capstone,pyq881120/capstone,pombredanne/capstone,07151129/capstone,bowlofstew/capstone,fvrmatteo/capstone,pombredanne/capstone,8l/capstone,capturePointer/capstone,sigma-random/capstone,8l/capstone,techvoltage/capstone,zuloloxi/capstone,sephiroth99/capstone,zuloloxi/capstone,krytarowski/capstone,zneak/capstone,angelabier1/capstone,07151129/capstone,NeilBryant/capstone,bSr43/capstone,xia0pin9/capstone,fvrmatteo/capstone,techvoltage/capstone,bigendiansmalls/capstone,pranith/capstone,sigma-random/capstone,bowlofstew/capstone,bigendiansmalls/capstone,sephiroth99/capstone,pyq881120/capstone,pranith/capstone,techvoltage/capstone,pombredanne/capstone,fvrmatteo/capstone,angelabier1/capstone,pranith/capstone,angelabier1/capstone,zneak/capstone,nplanel/capstone,sigma-random/capstone,code4bones/capstone,nplanel/capstone,bowlofstew/capstone,8l/capstone,sephiroth99/capstone,krytarowski/capstone,bughoho/capstone,xia0pin9/capstone,sephiroth99/capstone,bowlofstew/capstone,xia0pin9/capstone,capturePointer/capstone,pombredanne/capstone,sigma-random/capstone,zuloloxi/capstone,angelabier1/capstone,fvrmatteo/capstone,zneak/capstone,sigma-random/capstone,07151129/capstone,code4bones/capstone,sephiroth99/capstone,zuloloxi/capstone,pyq881120/capstone,techvoltage/capstone,code4bones/capstone,zuloloxi/capstone,pranith/capstone,krytarowski/capstone,8l/capstone,nplanel/capstone,07151129/capstone,pranith/capstone,nplanel/capstone,pyq881120/capstone,07151129/capstone,zuloloxi/capstone,NeilBryant/capstone,zneak/capstone,capturePointer/capstone,dynm/capstone,code4bones/capstone,dynm/capstone,AmesianX/capstone,pombredanne/capstone,nplanel/capstone,sephiroth99/capstone,AmesianX/capstone,bSr43/capstone,angelabier1/capstone,xia0pin9/capstone,xia0pin9/capstone,bigendiansmalls/capstone,bigendiansmalls/capstone,NeilBryant/capstone,bowlofstew/capstone,xia0pin9/capstone,pyq881120/capstone,AmesianX/capstone,techvoltage/capstone,8l/capstone,bughoho/capstone,bughoho/capstone,pyq881120/capstone,bowlofstew/capstone,code4bones/capstone,xia0pin9/capstone,capturePointer/capstone,sigma-random/capstone,zneak/capstone,07151129/capstone,NeilBryant/capstone,fvrmatteo/capstone,NeilBryant/capstone,AmesianX/capstone,AmesianX/capstone,angelabier1/capstone,krytarowski/capstone,code4bones/capstone,techvoltage/capstone,07151129/capstone,dynm/capstone,8l/capstone,angelabier1/capstone,bughoho/capstone,pranith/capstone,NeilBryant/capstone,nplanel/capstone,techvoltage/capstone,bSr43/capstone,zuloloxi/capstone,bSr43/capstone,dynm/capstone,AmesianX/capstone,capturePointer/capstone,zneak/capstone,bSr43/capstone,sephiroth99/capstone,sigma-random/capstone,krytarowski/capstone,dynm/capstone,bSr43/capstone,bughoho/capstone,bughoho/capstone,bughoho/capstone,code4bones/capstone,pombredanne/capstone,bigendiansmalls/capstone,fvrmatteo/capstone,dynm/capstone,8l/capstone,bSr43/capstone,AmesianX/capstone,pyq881120/capstone