fix(quickfix): populated with a single line

CHANGELOG.md

@@ -6,6 +6,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [5.1.4] - 2024-08-02
+
+### Fixed
+
+- LSP (runnables/quickfix executor): Quickfix list populated with a single line.
+
 ## [5.1.3] - 2024-08-02
 
 ### Fixed

lua/rustaceanvim/executors/quickfix.lua

@@ -8,8 +8,9 @@ local function scroll_qf()
   end
 end
 
-local function append_qf(line)
-  vim.fn.setqflist({}, 'a', { lines = { line } })
+---@param lines string[]
+local function append_qf(lines)
+  vim.fn.setqflist({}, 'a', { lines = { lines } })
   scroll_qf()
 end
 
@@ -38,7 +39,7 @@ local M = {
 %s
 %s
 ]]):format(sc.stdout or '', sc.stderr or '')
-        append_qf(data)
+        append_qf(vim.split(data, '\n'))
       end)
     )
   end,