[lib][libc][*printf] Make printfs more standard
[lib][libc][*printf] Make printfs more standard

-Remove erroneous null write at the end of every printf.
-Fix return code to be correct.

hollanderic/lkstuff,pablomarx/lk,pablomarx/lk,hollanderic/lkstuff,hollanderic/lkstuff,travisg/lk,srodrig1/lk,srodrig1/lk,skabet/lk,grub4android/lk,M1cha/lk,travisg/lk,GCrean/lk,srodrig1/lk,M1cha/lk,skabet/lk,travisg/lk,skabet/lk,pablomarx/lk,M1cha/lk,sndnvaps/lk,grub4android/lk,M1cha/lk,nvll/lk,minglun-tsai/lk,grub4android/lk,minglun-tsai/lk,hollanderic/lkstuff,GCrean/lk,grub4android/lk,GCrean/lk,sndnvaps/lk,pablomarx/lk,nvll/lk,minglun-tsai/lk,sndnvaps/lk,nvll/lk,littlekernel/lk,grub4android/lk,ErikCorryGoogle/lk,pablomarx/lk,sndnvaps/lk,sndnvaps/lk,littlekernel/lk,srodrig1/lk,minglun-tsai/lk,skabet/lk,ErikCorryGoogle/lk,GCrean/lk,travisg/lk,ErikCorryGoogle/lk,littlekernel/lk,nvll/lk,M1cha/lk,ErikCorryGoogle/lk,srodrig1/lk,littlekernel/lk,GCrean/lk,nvll/lk,skabet/lk