Merge pull request #682 from edx/e0d/mongo-url-fix

fixing mongo url construction.

playbooks/roles/forum/defaults/main.yml

@@ -18,9 +18,7 @@ FORUM_MONGO_HOSTS:
 FORUM_MONGO_TAGS: !!null
 FORUM_MONGO_PORT: "27017"
 FORUM_MONGO_DATABASE: "cs_comments_service"
-FORUM_MONGO_URL: "mongodb://{{ FORUM_MONGO_USER }}:{{ FORUM_MONGO_PASSWORD }}@{%- for host in FORUM_MONGO_HOSTS -%}
-{{host}}:{{ FORUM_MONGO_PORT }}{%- if not loop.last -%},{%- endif -%}/{{ FORUM_MONGO_DATABASE }}{%- if FORUM_MONGO_TAGS -%}?{{ FORUM_MONGO_TAGS }}{%- endif -%}
-{%- endfor -%}"
+FORUM_MONGO_URL: "mongodb://{{ FORUM_MONGO_USER }}:{{ FORUM_MONGO_PASSWORD }}@{%- for host in FORUM_MONGO_HOSTS -%}{{host}}:{{ FORUM_MONGO_PORT }}{%- if not loop.last -%},{%- endif -%}{%- endfor -%}/{{ FORUM_MONGO_DATABASE }}{%- if FORUM_MONGO_TAGS -%}?{{ FORUM_MONGO_TAGS }}{%- endif -%}"
 FORUM_SINATRA_ENV: "development"
 FORUM_RACK_ENV: "development"
 FORUM_NGINX_PORT: "18080"