keys_branch=${keys_branch:-master}
keys_file=${keys_file:-keys}
-keys_pipe_to=${keys_pipe_to:-/usr/local/bin/update-keys-from-stdin.sh}
+keys_pipe_to=${keys_pipe_to:-sudo /usr/local/bin/update-keys-from-stdin.sh}
changedcommits=$( grep "refs/heads/${keys_branch}" | sed 's/\([0-9a-f]\+\)\s\+\([0-9a-f]\+\)\s\+.*/\1..\2/;' )