Retryable can take multiple exceptions to retry on

lib/vagrant/util/retryable.rb

@@ -12,7 +12,7 @@ module Vagrant
 
         begin
           return yield
-        rescue opts[:on]
+        rescue *opts[:on]
           if (opts[:tries] -= 1) > 0
             sleep opts[:sleep].to_f if opts[:sleep]
             retry

test/vagrant/util/retryable_test.rb

@@ -31,6 +31,18 @@ class RetryableUtilTest < Test::Unit::TestCase
     }
   end
 
+  should "retry on multiple exceptions given" do
+    proc = mock("proc")
+    proc.expects(:call).twice
+
+    assert_raises(StandardError) {
+      @klass.retryable(:tries => 2, :on => [StandardError, RuntimeError]) do
+        proc.call
+        raise StandardError
+      end
+    }
+  end
+
   should "return the value of the block" do
     result = @klass.retryable { 7 }
     assert_equal 7, result