Merge "Explicitly document overcommit and `adb shell`'s use of oom_score_adj." am: 143f3cea32

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2638672

Change-Id: Iae43c92ecb34648fae27fd9bc94e18339b993fbe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>