fix syntax error caused by commenting out some lines

Author: dylemma

appveyor.yml

@@ -47,9 +47,7 @@ test_script:
       cargo build --target %TARGET% &&
       cargo build --target %TARGET% --release &&
       cargo test --target %TARGET% &&
-      cargo test --target %TARGET% --release &&
-#      cargo run --target %TARGET% &&
-#      cargo run --target %TARGET% --release
+      cargo test --target %TARGET% --release
     )
 
 before_deploy: