Strictly the _doc comment_ is correct, but the names of the parameters
are the wrong way round. (Although iconv_open() follows the usual C
tradition of "destination first", iconv() itself doesn't, so these
functions are inherently confused/confusing.)
Bug: https://github.com/android/ndk/issues/1895
Test: N/A
Change-Id: Iafc9bd630ece1d3c55986b04bb9a99c477716530
