trying to figure out "non-zero return code"

Change-Id: I1cc6a10b4ed235b952b1d411213f3f1543d6c932

.zuul.yaml

@@ -62,6 +62,7 @@
     irrelevant-files:
       - ^.*\.rst$
       - ^doc/.*$
+
 - job:
     name: treasuremap-yaml-lint
     nodeset: treasuremap-single-node
@@ -69,9 +70,7 @@
     run: tools/gate/playbooks/lint-yaml.yaml
     voting: true
     irrelevant-files:
-      - ^.*\.rst$
-      - ^doc/.*$
-
+      - ^py/.*$
 
 - job:
     name: treasuremap-seaworthy-site-lint

tools/gate/install-yaml-lint.sh

@@ -1,5 +1,4 @@
 #!/bin/bash
 set -xe
 sudo apt-get update
-sudo apt-get install --no-install-recommends -y	yamllint
-	
+sudo apt-get install --no-install-recommends -y yamllint

tools/gate/playbooks/lint-yaml.yaml

@@ -16,6 +16,10 @@
   tasks:
     - name: lint-yaml
       shell: |
-        set -xe;
-        	./tools/gate/installyamllint.sh
-                 ./tools/gate/lintyaml.sh
+        set -xe
+        ./tools/gate/installyamllint.sh
+        ./tools/gate/lintyaml.sh
+      args:
+        chdir: "{{ zuul.project.src_dir }}"
+      become: yes
+