Trim whitespace from raw value.

src/types/object.rs

@@ -586,3 +586,9 @@ impl<'s> StandardProperties<'s> for PlainText<'s> {
         self.source
     }
 }
+
+impl<'s> Timestamp<'s> {
+    pub fn get_raw_value(&self) -> &'s str {
+        self.source.trim_end()
+    }
+}