From 3e6dc5cc46114ba19077e6a0486b635ffdb49805 Mon Sep 17 00:00:00 2001
From: emma <emma@tebibyte.media>
Date: Fri, 1 Mar 2024 23:14:18 -0700
Subject: [PATCH] rpn(1): make error messages consistent with other tools

---
 src/rpn.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/rpn.rs b/src/rpn.rs
index 0cb23b8..8ccf5d6 100644
--- a/src/rpn.rs
+++ b/src/rpn.rs
@@ -52,8 +52,10 @@ use std::{
 
 use CalcType::*;
 
+extern crate strerror;
 extern crate sysexits;
 
+use strerror::c_error;
 use sysexits::EX_DATAERR;
 
 #[derive(Clone, PartialEq, PartialOrd, Debug)]
@@ -172,7 +174,7 @@ fn eval(
 					};
 				} else {
 					return Err(EvaluationError {
-						message: format!("{}: Unexpected operation.", op),
+						message: format!("{}: Unexpected operation", op),
 						code: EX_DATAERR,
 					})
 				}