fix(selene): Little pedantic lint.

Author: Zeioth

lua/compiler/utils.lua

@@ -12,7 +12,7 @@ function M.find_files(start_dir, file_name)
 
   -- Create the find command with appropriate flags for recursive searching
   local find_command
-  if package.config:sub(1, 1) == "\\" then -- Windows
+  if string.sub(package.config, 1, 1) == "\\" then -- Windows
     find_command = string.format('powershell.exe -Command "Get-ChildItem -Path \\"%s\\" -Recurse -Filter \\"%s\\" -File -Exclude \\".git\\" -ErrorAction SilentlyContinue"', start_dir, file_name)
   else -- UNIX-like systems
     find_command = string.format('find "%s" -type d -name ".git" -prune -o -type f -name "%s" -print 2>/dev/null', start_dir, file_name)
@@ -135,7 +135,7 @@ end
 function M.os_path(path)
   if path == nil then return nil end
   -- Get the platform-specific path separator
-  local separator = package.config:sub(1,1)
+  local separator = string.sub(package.config, 1, 1)
   return string.gsub(path, '[/\\]', separator)
 end