make colons optional in text parser. (missed update in google-internal code)
add test.

R=dsymonds, dsymonds1
http://codereview.appspot.com/1733042
diff --git a/proto/text_parser_test.go b/proto/text_parser_test.go
index 96ec965..5382ac5 100644
--- a/proto/text_parser_test.go
+++ b/proto/text_parser_test.go
@@ -132,6 +132,20 @@
 		},
 	},
 
+	// Repeated message with/without colon and <>/{}
+	UnmarshalTextTest{
+		in: `count:42 others:{} others{} others:<> others:{}`,
+		out: &MyMessage{
+			Count: Int32(42),
+			Others: []*OtherMessage{
+				&OtherMessage{},
+				&OtherMessage{},
+				&OtherMessage{},
+				&OtherMessage{},
+			},
+		},
+	},
+
 	// Missing colon for inner message
 	UnmarshalTextTest{
 		in: `count:42 inner < host: "cauchy.syd" >`,