Update language to comply with Android's inclusive language guidance

More details in: https://source.android.com/setup/contribute/respectful-code

Bug: 161896447
Test: build, run unittests
Change-Id: I35732333da0dd0c871f3e37c4af1b2211647d1e3
diff --git a/tools/releasetools/sign_target_files_apks.py b/tools/releasetools/sign_target_files_apks.py
index 1cb9a4f..b4646b7 100755
--- a/tools/releasetools/sign_target_files_apks.py
+++ b/tools/releasetools/sign_target_files_apks.py
@@ -1149,7 +1149,7 @@
       apex_name, key = a.split("=")
       OPTIONS.extra_apex_payload_keys[apex_name] = key
     elif o == "--skip_apks_with_path_prefix":
-      # Sanity check the prefix, which must be in all upper case.
+      # Check the prefix, which must be in all upper case.
       prefix = a.split('/')[0]
       if not prefix or prefix != prefix.upper():
         raise ValueError("Invalid path prefix '%s'" % (a,))