fix: improve error message

Author: monitz87

src/procedures/FreezeIssuance.ts

@@ -43,7 +43,7 @@ export class FreezeIssuance extends Procedure<FreezeIssuanceProcedureArgs> {
     if (!isIssuable) {
       throw new PolymathError({
         code: ErrorCode.ProcedureValidationError,
-        message: `The issuance has already been frozen permanently`,
+        message: `Issuance has already been frozen permanently`,
       });
     }
     // If there is no hex signature passed in, create a signature request to sign the freeze issuance acknowledgement

src/procedures/__tests__/FreezeIssuance.ts

@@ -84,7 +84,7 @@ describe('FreezeIssuance', () => {
       await expect(target.prepareTransactions()).rejects.toThrowError(
         new PolymathError({
           code: ErrorCode.ProcedureValidationError,
-          message: 'The issuance has already been frozen permanently',
+          message: 'Issuance has already been frozen permanently',
         })
       );
     });