From 77eb78a8c583e17f0cf98a433eb42aa0fc63ce4f Mon Sep 17 00:00:00 2001
From: Corey Farwell <coreyf@rwell.org>
Date: Sun, 20 Mar 2016 00:35:46 -0400
Subject: [PATCH] Remove double-negative conditionals.

---
 src/librustc_driver/lib.rs | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/librustc_driver/lib.rs b/src/librustc_driver/lib.rs
index d4f164b6e24be..dc048807bcce3 100644
--- a/src/librustc_driver/lib.rs
+++ b/src/librustc_driver/lib.rs
@@ -335,10 +335,10 @@ pub struct RustcDefaultCalls;
 fn handle_explain(code: &str,
                   descriptions: &diagnostics::registry::Registry,
                   output: ErrorOutputType) {
-    let normalised = if !code.starts_with("E") {
-        format!("E{0:0>4}", code)
-    } else {
+    let normalised = if code.starts_with("E") {
         code.to_string()
+    } else {
+        format!("E{0:0>4}", code)
     };
     match descriptions.find_description(&normalised) {
         Some(ref description) => {
@@ -916,10 +916,10 @@ pub fn handle_options(args: &[String]) -> Option<getopts::Matches> {
         if opt.stability == OptionStability::Stable {
             continue
         }
-        let opt_name = if !opt.opt_group.long_name.is_empty() {
-            &opt.opt_group.long_name
-        } else {
+        let opt_name = if opt.opt_group.long_name.is_empty() {
             &opt.opt_group.short_name
+        } else {
+            &opt.opt_group.long_name
         };
         if !matches.opt_present(opt_name) {
             continue