[libc] Update comments.

Author: harrisonGPU

libc/src/math/generic/common_constants.cpp

@@ -98,7 +98,7 @@ const double ONE_OVER_F[128] = {
     0x1.05197f7d73404p-1, 0x1.0410410410410p-1, 0x1.03091b51f5e1ap-1,
     0x1.0204081020408p-1, 0x1.0101010101010p-1};
 
-// Lookup table for (1/f) where f = 1 + n*2^(-7), n = 0..127,
+// Lookup table for log(f) = log(1 + n*2^(-7)) where n = 0..127,
 // computed and stored as float precision constants.
 // Generated by Sollya with the following commands:
 //   display = hexadecimal;

libc/src/math/generic/explogxf.h

@@ -310,7 +310,7 @@ LIBC_INLINE static float log_eval_f(float x) {
   // p1 * 2^(-7) <= m_x < (p1 + 1) * 2^(-7).
   int p1 = static_cast<int>(xbits.get_mantissa() >> (FPBits::FRACTION_LEN - 7));
 
-  // Set bs to (1 + (mx - p1*2^(-7))
+  // Set bits to (1 + (mx - p1*2^(-7))
   xbits.set_uintval(xbits.uintval() & (FPBits::FRACTION_MASK >> 7));
   xbits.set_biased_exponent(FPBits::EXP_BIAS);
   // dx = (mx - p1*2^(-7)) / (1 + p1*2^(-7)).