Enable Layout/SpaceAfterColon cop for HAML

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

.haml-lint.yml

@@ -111,7 +111,6 @@ linters:
       - Layout/EmptyLineAfterGuardClause
       - Layout/LeadingCommentSpace
       - Layout/SpaceAfterColon
-      - Layout/SpaceAfterComma
       - Layout/SpaceAroundOperators
       - Layout/SpaceBeforeBlockBraces
       - Layout/SpaceBeforeComma

app/views/projects/graphs/show.html.haml

@@ -5,4 +5,4 @@
     = render 'shared/ref_switcher', destination: 'graphs'
   = link_to s_('Commits|History'), project_commits_path(@project, current_ref), class: 'btn gl-button btn-default'
 
-.js-contributors-graph{ class: container_class, 'data-project-graph-path': project_graph_path(@project, current_ref, format: :json),'data-project-branch': current_ref }
+.js-contributors-graph{ class: container_class, 'data-project-graph-path': project_graph_path(@project, current_ref, format: :json), 'data-project-branch': current_ref }

app/views/shared/hook_logs/_content.html.haml

@@ -24,7 +24,7 @@
 
 %h5 Request headers:
 %pre
-  - hook_log.request_headers.each do |k,v|
+  - hook_log.request_headers.each do |k, v|
     <strong>#{k}:</strong> #{v}
     %br
 
@@ -34,7 +34,7 @@
     #{Gitlab::Json.pretty_generate(hook_log.request_data)}
 %h5 Response headers:
 %pre
-  - hook_log.response_headers.each do |k,v|
+  - hook_log.response_headers.each do |k, v|
     <strong>#{k}:</strong> #{v}
     %br