From 387607503ce1ff0e66f25dd1ddfb55e859952974 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sun, 25 Oct 2020 13:34:52 +0100
Subject: [PATCH] LibCore: IODevice::can_read_line() should succeed for
 newline-less file

If the first call to populate_read_buffer() hits EOF but something did
get buffered, we can indeed read a line.
---
 Libraries/LibCore/IODevice.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Libraries/LibCore/IODevice.cpp b/Libraries/LibCore/IODevice.cpp
index 22d4eb994b..63079c5721 100644
--- a/Libraries/LibCore/IODevice.cpp
+++ b/Libraries/LibCore/IODevice.cpp
@@ -130,6 +130,8 @@ bool IODevice::can_read_line() const
     if (!can_read_from_fd())
         return false;
     populate_read_buffer();
+    if (m_eof && !m_buffered_data.is_empty())
+        return true;
     return m_buffered_data.contains_slow('\n');
 }