Remove trailing whitespace from pipeline_header.yml (#6225)

Co-authored-by: NJason Vigil <jvigil@pivotal.io>
Co-authored-by: NBradford Boyle <bboyle@pivotal.io>

concourse/pipelines/gpdb_master-generated.yml

 ## ######################################################################
-##            ___   ___    _  _  ___ _____   ___ ___ ___ _____ 
+##            ___   ___    _  _  ___ _____   ___ ___ ___ _____
 ##           |   \ / _ \  | \| |/ _ \_   _| | __|   \_ _|_   _|
-##           | |) | (_) | | .` | (_) || |   | _|| |) | |  | |  
-##           |___/ \___/  |_|\_|\___/ |_|   |___|___/___| |_|  
-##            _____ _  _ ___ ___   ___ ___ _    ___ _ 
+##           | |) | (_) | | .` | (_) || |   | _|| |) | |  | |
+##           |___/ \___/  |_|\_|\___/ |_|   |___|___/___| |_|
+##            _____ _  _ ___ ___   ___ ___ _    ___ _
 ##           |_   _| || |_ _/ __| | __|_ _| |  | __| |
 ##             | | | __ || |\__ \ | _| | || |__| _||_|
 ##             |_| |_||_|___|___/ |_| |___|____|___(_)
@@ -12,7 +12,7 @@
 ## file (example: templates/gpdb-tpl.yml) and regenerate the pipeline
 ## using appropriate tool (example: gen_pipeline.py -t prod).
 ## ----------------------------------------------------------------------
-## Generated by gen_pipeline.py at: 2018-10-24 08:56:59.973803
+## Generated by gen_pipeline.py at: 2018-11-13 23:19:58.079019
 ## Template file: gpdb-tpl.yml
 ## OS Types: ['centos6', 'centos7', 'sles', 'aix7', 'win', 'ubuntu16']
 ## Test Sections: ['ICW', 'Replication', 'ResourceGroups', 'Interconnect', 'CLI', 'UD', 'AA', 'Extensions']

concourse/pipelines/templates/pipeline_header.yml

 ## ######################################################################
-##            ___   ___    _  _  ___ _____   ___ ___ ___ _____ 
+##            ___   ___    _  _  ___ _____   ___ ___ ___ _____
 ##           |   \ / _ \  | \| |/ _ \_   _| | __|   \_ _|_   _|
-##           | |) | (_) | | .` | (_) || |   | _|| |) | |  | |  
-##           |___/ \___/  |_|\_|\___/ |_|   |___|___/___| |_|  
-##            _____ _  _ ___ ___   ___ ___ _    ___ _ 
+##           | |) | (_) | | .` | (_) || |   | _|| |) | |  | |
+##           |___/ \___/  |_|\_|\___/ |_|   |___|___/___| |_|
+##            _____ _  _ ___ ___   ___ ___ _    ___ _
 ##           |_   _| || |_ _/ __| | __|_ _| |  | __| |
 ##             | | | __ || |\__ \ | _| | || |__| _||_|
 ##             |_| |_||_|___|___/ |_| |___|____|___(_)