Fix typo in eunit help.
diff --git a/src/rebar_eunit.erl b/src/rebar_eunit.erl
index f4d7b76..ebf76bc 100644
--- a/src/rebar_eunit.erl
+++ b/src/rebar_eunit.erl
@@ -54,8 +54,8 @@
%% </li>
%% <li>
%% tests="baz"- For every existing suite, run the first test whose
-%% name starts with bar and, if no such test exists, run the test
-%% whose name starts with bar in the suite's _tests module
+%% name starts with baz and, if no such test exists, run the test
+%% whose name starts with baz in the suite's _tests module
%% </li>
%% </ul>
%% Additionally, for projects that have separate folders for the core
