Fix two clippy warnings

After the switch to using the nitrokey crate for communication with the
device, we have to warnings standing in the way of enabling clippy
unconditionally for the nitrocli crate. This change fixes those two
warnings.

1 files changed, 2 insertions, 2 deletions

diff --git a/nitrocli/src/pinentry.rs b/nitrocli/src/pinentry.rs
index 1f1b02a..66ca6be 100644
--- a/nitrocli/src/pinentry.rs
+++ b/nitrocli/src/pinentry.rs
@@ -77,7 +77,7 @@ fn parse_pinentry_passphrase(response: Vec<u8>) -> Result<Vec<u8>, Error> {
 
   // Check if we are dealing with a special "ERR " line and report that
   // specially.
-  if lines.len() >= 1 && lines[0].starts_with("ERR ") {
+  if !lines.is_empty() && lines[0].starts_with("ERR ") {
     let (_, error) = lines[0].split_at(4);
     return Err(Error::Error(error.to_string()));
   }
@@ -91,7 +91,7 @@ fn parse_pinentry_passphrase(response: Vec<u8>) -> Result<Vec<u8>, Error> {
 /// if available.  If an error message is set, it is displayed in the passphrase dialog.
 pub fn inquire_passphrase(pin_type: PinType, error_msg: Option<&str>) -> Result<Vec<u8>, Error> {
   let cache_id = pin_type.cache_id();
-  let error_msg = error_msg.map(|msg| msg.replace(" ", "+")).unwrap_or(String::from("+"));
+  let error_msg = error_msg.map(|msg| msg.replace(" ", "+")).unwrap_or_else(|| String::from("+"));
   let prompt = pin_type.prompt();
   let description = pin_type.description().replace(" ", "+");