remove .to_owned() calls on &str in exceptions

src/datamatrix/encoder/c40_encoder.rs

@@ -234,9 +234,7 @@ impl C40Encoder {
                 context.writeCodeword(C40_UNLATCH);
             }
         } else {
-            return Err(Exceptions::illegalState(
-                "Unexpected case. Please report!".to_owned(),
-            ));
+            return Err(Exceptions::illegalState("Unexpected case. Please report!"));
         }
         context.signalEncoderChange(ASCII_ENCODATION);
 

src/datamatrix/encoder/edifact_encoder.rs

@@ -95,9 +95,7 @@ impl EdifactEncoder {
             }
 
             if count > 4 {
-                return Err(Exceptions::illegalState(
-                    "Count must not exceed 4".to_owned(),
-                ));
+                return Err(Exceptions::illegalState("Count must not exceed 4"));
             }
             let restChars = count - 1;
             let encoded = Self::encodeToCodewords(buffer)?;
@@ -149,9 +147,7 @@ impl EdifactEncoder {
     fn encodeToCodewords(sb: &str) -> Result<String, Exceptions> {
         let len = sb.chars().count();
         if len == 0 {
-            return Err(Exceptions::illegalState(
-                "StringBuilder must not be empty".to_owned(),
-            ));
+            return Err(Exceptions::illegalState("StringBuilder must not be empty"));
         }
         let c1 = sb
             .chars()

src/datamatrix/encoder/encoder_context.rs

@@ -67,7 +67,7 @@ impl<'a> EncoderContext<'_> {
                 })?
         } else {
             return Err(Exceptions::illegalArgument(
-                "Message contains characters outside ISO-8859-1 encoding.".to_owned(),
+                "Message contains characters outside ISO-8859-1 encoding.",
             ));
         };
         Ok(Self {

src/datamatrix/encoder/error_correction.rs

@@ -155,7 +155,7 @@ const ALOG: [u32; 255] = {
 pub fn encodeECC200(codewords: &str, symbolInfo: &SymbolInfo) -> Result<String, Exceptions> {
     if codewords.chars().count() != symbolInfo.getDataCapacity() as usize {
         return Err(Exceptions::illegalArgument(
-            "The number of codewords does not match the selected symbol".to_owned(),
+            "The number of codewords does not match the selected symbol",
         ));
     }
     let mut sb = String::with_capacity(

src/datamatrix/encoder/symbol_info.rs

@@ -129,7 +129,7 @@ impl SymbolInfo {
             16 => Ok(4),
             36 => Ok(6),
             _ => Err(Exceptions::illegalState(
-                "Cannot handle this number of data regions".to_owned(),
+                "Cannot handle this number of data regions",
             )),
         }
     }
@@ -141,7 +141,7 @@ impl SymbolInfo {
             16 => Ok(4),
             36 => Ok(6),
             _ => Err(Exceptions::illegalState(
-                "Cannot handle this number of data regions".to_owned(),
+                "Cannot handle this number of data regions",
             )),
         }
     }