improve landscape config

.landscape.yml

@@ -1,8 +1,12 @@
-max-line-length: 120
+ignore-paths:
+  - docs
+  - examples
+  - libmproxy/contrib
+  - web
+max-line-length: 140
 pylint:
   options:
     dummy-variables-rgx: _$|.+_$|dummy_.+
-
   disable:
     - missing-docstring
     - protected-access
@@ -13,4 +17,4 @@ pylint:
     - too-many-public-methods
     - too-many-return-statements
     - too-many-statements
-    - unpacking-non-sequence
+    - unpacking-non-sequence