implement display for EcloadError

src/error.rs

@@ -1,3 +1,5 @@
+use std::fmt;
+
 #[derive(Debug)]
 /// Convert different errors into a common one.
 pub enum EcloadError {
@@ -8,6 +10,12 @@ pub enum EcloadError {
     ImageError(image::ImageError),
 }
 
+impl fmt::Display for EcloadError {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}", self)
+    }
+}
+
 impl From<std::io::Error> for EcloadError {
     fn from(e: std::io::Error) -> Self {
         EcloadError::StdError(e)