Add ruperts@ to Bazel contributors.
RELNOTES: None.
@@ -81,6 +81,7 @@ Peter Schmitt <schmitt@google.com>
Cody Schroeder <schroederc@google.com>
Dmitry Shevchenko <dmishe@google.com>
John Shimek <varikin@gmail.com>
+Rupert Shuttleworth <ruperts@google.com>
Brian Silverman <bsilver16384@gmail.com>
Michael Staib <mstaib@google.com>
John Sullivan <john.t.sullivan@gmail.com>
