am 7e827aca: Show a long dash instead of 0° if no temperature is available. (DO NOT MERGE)

Merge commit '7e827acae69298441b970262a309a957c92da155' into eclair-plus-aosp

* commit '7e827acae69298441b970262a309a957c92da155':
  Show a long dash instead of 0° if no temperature is available. (DO NOT MERGE)