Disable the line length checker by default.
diff --git a/Doc/Makefile b/Doc/Makefile
index 02d1acf..b1b0e85 100644
--- a/Doc/Makefile
+++ b/Doc/Makefile
@@ -142,4 +142,4 @@
 	cp build/latex/docs-pdf.tar.bz2 dist/python-$(DISTVERSION)-docs-pdf-letter.tar.bz2
 
 check:
-	$(PYTHON) tools/rstlint.py -i tools -s 2
+	$(PYTHON) tools/rstlint.py -i tools