Fix logfile overwriting existing files

CHANGELOG.md

@@ -41,6 +41,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Vi cursor on topmost of the display moving downward when scrolled into history with active output
 - Input lag on Wayland with Nvidia binary driver
 - Crash when hovering the mouse over fullwidth characters
+- Do not create logfile if the file already exists
 
 ### Removed
 

alacritty/src/logging.rs

@@ -184,7 +184,7 @@ impl OnDemandLogFile {
 
         // Create the file if it doesn't exist yet.
         if self.file.is_none() {
-            let file = OpenOptions::new().append(true).create(true).open(&self.path);
+            let file = OpenOptions::new().append(true).create_new(true).open(&self.path);
 
             match file {
                 Ok(file) => {