Merge "Fix iconv_open(3) docs." am: 0594346633

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2624749

Change-Id: I5e22ad8e685bd4c023b679ac29e11043b147a3db
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>