fop(1): changed to use strerror(3)

src/fop.rs

@@ -22,10 +22,12 @@ use std::{
 	process::{ Command, exit, Stdio },
 };
 
-extern crate sysexits;
 extern crate getopt;
+extern crate strerror;
+extern crate sysexits;
 
 use getopt::{ Opt, Parser };
+use strerror::c_error;
 use sysexits::{ EX_DATAERR, EX_IOERR, EX_UNAVAILABLE, EX_USAGE };
 
 fn main() {
@@ -55,7 +57,7 @@ fn main() {
 	});
 
 	let index = argv[index_arg].parse::<usize>().unwrap_or_else(|e| {
-		eprintln!("{}: {}: {}.", argv[0], argv[1], e);
+		eprintln!("{}: {}: {}", argv[0], argv[1], e);
 		exit(EX_DATAERR);
 	});
 
@@ -75,13 +77,13 @@ fn main() {
 		.stdout(Stdio::piped())
 		.spawn()
 		.unwrap_or_else( |e| {
-			eprintln!("{}: {}: {}.", argv[0], argv[command_arg], e);
+			eprintln!("{}: {}: {}", argv[0], argv[command_arg], c_error(e));
 			exit(EX_UNAVAILABLE);
 		});
 
 	let field = fields.get(index).unwrap_or_else(|| {
 		eprintln!(
-			"{}: {}: No such index in input.",
+			"{}: {}: No such index in input",
 			argv[0],
 			index.to_string(),
 		);
@@ -94,7 +96,7 @@ fn main() {
 	}
 
 	let output = spawned.wait_with_output().unwrap_or_else(|e| {
-		eprintln!("{}: {}: {}.", argv[0], argv[command_arg], e);
+		eprintln!("{}: {}: {}", argv[0], argv[command_arg], c_error(e));
 		exit(EX_IOERR);
 	});
 
@@ -103,7 +105,7 @@ fn main() {
 	if replace.pop() != Some(b'\n') { replace = output.stdout; }
 
 	let new_field = String::from_utf8(replace).unwrap_or_else(|e| {
-		eprintln!("{}: {}: {}.", argv[0], argv[command_arg], e);
+		eprintln!("{}: {}: {}", argv[0], argv[command_arg], e);
 		exit(EX_IOERR);
 	});
 
@@ -111,8 +113,8 @@ fn main() {
 
 	stdout().write_all(
 		fields.join(&d.to_string()).as_bytes()
-	).unwrap_or_else(|e|{
-		eprintln!("{}: {}.", argv[0], e);
+	).unwrap_or_else(|e| {
+		eprintln!("{}: {}", argv[0], c_error(e));
 		exit(EX_IOERR);
 	});
 }