am 958214aa: am 8ad63d74: Merge "stdlib: strtod: Hide internal symbol __dtoa"

Merge commit '958214aa998d9378e7d70c7c08ffab4c5f9d3fde'

* commit '958214aa998d9378e7d70c7c08ffab4c5f9d3fde':
  stdlib: strtod: Hide internal symbol __dtoa