Update language to comply with Android’s inclusive language guidance.

See https://source.android.com/setup/contribute/respectful-code for reference

Test: atest --test-mapping apex/blobstore
Change-Id: I35a036aa27e603e7a41d839e4f1fe66d80fa48a5
Merged-In: I35a036aa27e603e7a41d839e4f1fe66d80fa48a5
3 files changed