Syntax correctie & keep yamlint happy

.drone.yml

@@ -9,7 +9,7 @@ platform:
   variant: CentOS7
 
 steps:
-- name: Run unit test
+  - name: Run unit test
     environment:
       PYTHONPATH: .
     commands:
@@ -26,7 +26,7 @@ platform:
   variant: Fedora
 
 steps:
-- name: Run unit test
+  - name: Run unit test
     environment:
       PYTHONPATH: .
     commands:
@@ -42,22 +42,33 @@ platform:
   arch: amd64
   variant: Fedora
 
-- name: Build package files
+steps:
+  - name: Build package files
     commands:
       - python setup.py sdist bdist_wheel
 
-- name: Versie toevoegen aan download
+  - name: Versie toevoegen aan download
     environment:
       DOWNLOADDIR: /usr/share/nginx/html/download/python/lmwsip
     commands:
       - mkdir -p "$${DOWNLOADDIR}"
       - cd dist
-  - for f in *;do if [ -f "$${DOWNLOADDIR}/$${f}" ] ; then echo version error;exit 1;else cp "$${f}" "$${DOWNLOADDIR}";fi;done
+      - |
+        for f in *
+        do
+          if [ -f "$${DOWNLOADDIR}/$${f}" ]
+          then
+            echo version error
+            exit 1
+          else
+            cp "$${f}" "$${DOWNLOADDIR}";
+          fi
+        done
       - ls -l "$${DOWNLOADDIR}"
     when:
       branch:
         - master
 
-  depends_on:
+depends_on:
   - CentOS7_test
   - Fedora_test