update

examples/print_metainfo.rs

@@ -0,0 +1,19 @@
+extern crate failure;
+extern crate magnolia;
+
+use std::env;
+
+use failure::Fail;
+use magnolia::metainfo::Metainfo;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    match Metainfo::open(&args[1]) {
+        Ok(meta) => println!("{:?}", meta),
+        Err(e) => {
+            for cause in e.causes() {
+                println!("{}", cause);
+            }
+        }
+    }
+}