[Supervisord] Remove extra tab added for ADC regions only, compromising the bootstrap of supervisord. (#2683)

Signed-off-by: Giacomo Marciani <[email protected]>

Author: gmarciani

cookbooks/aws-parallelcluster-platform/templates/supervisord/parallelcluster_supervisord.conf.erb

@@ -10,7 +10,7 @@ redirect_stderr = true
 stdout_logfile = /var/log/parallelcluster/cfn-hup-runner.log
 stdout_logfile_maxbytes = 1MB
 <% if @region.start_with?('us-iso') -%>
-  environment = AWS_CA_BUNDLE="<%= @aws_ca_bundle %>"
+environment = AWS_CA_BUNDLE="<%= @aws_ca_bundle %>"
 <% end -%>
 <% end -%>