* libm/mathfp/sf_exp.c: Corrected _DOUBLE_IS_32_BITS to be _DOUBLE_IS_32BITS.
* libc/stdio/vfprintf.c (VFPRINTF): Added CHECK_INIT call prior to calling _VFPRINTF_R so reentrant data area is set. (_VFPRINTF_R): Removed now extraneous CHECK_INIT call.