Ensure %E and %e use upper- and lower-case E.

Formatter is documented to use e and E as the exponent symbol when using
%e and %E respectively.

Android adds internationalization support to this, but we still want to
stay consistent in the ROOT locale.

Bug: 27566754
Change-Id: I6260cb22d3000d6c77ea23610bb776ef1c817eef
2 files changed