From 13235b596f93f7f0e7ce76e7967996787147e96e Mon Sep 17 00:00:00 2001
From: Eric Nielsen <eric@amalgamar.com.br>
Date: Thu, 1 Jun 2017 18:02:38 -0500
Subject: Use uppercase for required argument names

This reverts a couple of changes introduced in 4c78ca8 and keeps the
`PATTERN` argument consistently uppercased, so error messages can look
like:

    error: The following required arguments were not provided:
        <PATTERN>
---
 src/args.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/args.rs')

diff --git a/src/args.rs b/src/args.rs
index 703ab3b5..b6f0138e 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -375,7 +375,7 @@ impl<'a> ArgMatches<'a> {
         if self.is_present("file")
             || self.is_present("files")
             || self.is_present("regexp") {
-            if let Some(path) = self.value_of_os("pattern") {
+            if let Some(path) = self.value_of_os("PATTERN") {
                 paths.insert(0, Path::new(path).to_path_buf());
             }
         }
@@ -438,7 +438,7 @@ impl<'a> ArgMatches<'a> {
         match self.values_of_os("regexp") {
             None => {
                 if self.values_of_os("file").is_none() {
-                    if let Some(os_pat) = self.value_of_os("pattern") {
+                    if let Some(os_pat) = self.value_of_os("PATTERN") {
                         pats.push(try!(self.os_str_pattern(os_pat)));
                     }
                 }
-- 
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