Use {} instead of {:?} where possible

Most notably, for command errors, this will print a human-readable error
message instead of just the name of the enum.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/pws.rs b/src/pws.rs
index 17f247e..c20fe9d 100644
--- a/src/pws.rs
+++ b/src/pws.rs
@@ -88,7 +88,7 @@ pub trait GetPasswordSafe {
     ///         use_password_safe(&pws);
     ///         device.lock()?;
     ///     },
-    ///     Err(err) => println!("Could not open the password safe: {:?}", err),
+    ///     Err(err) => println!("Could not open the password safe: {}", err),
     /// };
     /// #     Ok(())
     /// # }
@@ -177,7 +177,7 @@ impl<'a> PasswordSafe<'a> {
     ///         let password = pws.get_slot_login(0)?;
     ///         println!("Credentials for {}: login {}, password {}", name, login, password);
     ///     },
-    ///     Err(err) => println!("Could not open the password safe: {:?}", err),
+    ///     Err(err) => println!("Could not open the password safe: {}", err),
     /// };
     /// #     Ok(())
     /// # }
@@ -313,7 +313,7 @@ impl<'a> PasswordSafe<'a> {
     /// let pws = device.get_password_safe("123456")?;
     /// match pws.erase_slot(0) {
     ///     Ok(()) => println!("Erased slot 0."),
-    ///     Err(err) => println!("Could not erase slot 0: {:?}", err),
+    ///     Err(err) => println!("Could not erase slot 0: {}", err),
     /// };
     /// #     Ok(())
     /// # }