More fix for -e

Not sure whether sort, tr or xargs returning non-zero status, but
one of them sometimes does.

Test: manually

Change-Id: I8f2b862de9d6e22dd90068252e393533ec992dfd

scripts/transitive-deps.sh

@@ -469,7 +469,9 @@ case "${notices_out}" in
     fi
     readonly hashedNotice="${tmpFiles}/hashednotices"
     ( # md5sum outputs checksum space indicator(space or *) filename newline
+        set +e
         sort -u "${allNotice}" | tr '\n' '\0' | xargs -0 -r md5sum 2>/dev/null
+        set -e
       # use sed to replace space and indicator with separator
     ) > "${hashedNotice}"
     if ${showProgress}; then