Add eos evaluation

Change-Id: Ia721ce1df8798fa2771059b4feb12eb56459325b
diff --git a/nnsplit_bench/src/main.rs b/nnsplit_bench/src/main.rs
index f057006..5c3f8eb 100644
--- a/nnsplit_bench/src/main.rs
+++ b/nnsplit_bench/src/main.rs
@@ -15,7 +15,7 @@
     let splits = &splitter.split(&input)[0];
 
     for sentence in splits.iter() {
-        println!("{}", sentence.text());
+        println!("{}</eos>", sentence.text());
     }
 
     Ok(())