Fix typo, occured -> occurred

src/rebar_prv_common_test.erl

@@ -93,7 +93,7 @@ format_error({error, Reason}) ->
 format_error({error_running_tests, Reason}) ->
     format_error({error, Reason});
 format_error({failures_running_tests, {Failed, AutoSkipped}}) ->
-    io_lib:format("Failures occured running tests: ~b", [Failed+AutoSkipped]);
+    io_lib:format("Failures occurred running tests: ~b", [Failed+AutoSkipped]);
 format_error({badconfig, {Msg, {Value, Key}}}) ->
     io_lib:format(Msg, [Value, Key]);
 format_error({badconfig, Msg}) ->

src/rebar_prv_dialyzer.erl

@@ -118,7 +118,7 @@ maybe_fix_env() ->
 format_error({error_processing_apps, Error}) ->
     io_lib:format("Error in dialyzing apps: ~s", [Error]);
 format_error({dialyzer_warnings, Warnings}) ->
-    io_lib:format("Warnings occured running dialyzer: ~b", [Warnings]);
+    io_lib:format("Warnings occurred running dialyzer: ~b", [Warnings]);
 format_error({unknown_application, App}) ->
     io_lib:format("Could not find application: ~s", [App]);
 format_error({unknown_module, Mod}) ->