fixup! support for system ruff executable

Author: TheJJ

pylsp_ruff/plugin.py

@@ -560,7 +560,7 @@ def run_ruff(
     (stdout, stderr) = p.communicate(document_source.encode())
 
     if p.returncode != 0:
-        log.error(f"Ruff returned != 0")
+        log.error(f"Ruff returned {p.returncode} != 0")
 
     return stdout.decode()