Add more context for onos builds

Change-Id: I541d09529471059bab4fad323e16f1505ef57f54
diff --git a/config.mk b/config.mk
index 1a6c595..382fdf9 100644
--- a/config.mk
+++ b/config.mk
@@ -38,8 +38,8 @@
 ##-----------------------------##
 ##---]  Custom exclusions  [---##
 ##-----------------------------##
-lint-doc8-excl += --ignore-path '_build'
-lint-doc8-excl += --ignore-path "vendor"
+lint-doc8-excl += '_build'
+lint-doc8-excl += 'vendor'
 
 config-mk-version    := 1.0