Rename comment header to message header for correctness

README.md

@@ -80,5 +80,5 @@ Important fields:
 with the syntax described earlier.
 * `github_token`: You must provide the GitHub token for the Action to be able to view and
 most importantly edit your pull request description.
-* (Optional) `comment_header`: You may provide a custom message to be displayed above the checklist instead of the
+* (Optional) `message_header`: You may provide a custom message to be displayed above the checklist instead of the
 default one found in [action.yml]().

action.yml

@@ -7,9 +7,9 @@ inputs:
   dod_yaml:
     description: 'The relative path to the YAML file with your DoD'
     required: true
-  comment_header:
-    description: 'The header of the comment with the DoD checklist'
-    default: '### :ballot_box_with_check: Definition of Done checker'
+  message_header:
+    description: 'The header of the message with the DoD checklist'
+    default: '### :ballot_box_with_check: Definition of Done checklist'
 runs:
   using: 'docker'
   image: 'Dockerfile'

run_action.py

@@ -6,24 +6,24 @@
 import argparse
 import yaml
 
-COMMENT_HEADER = os.environ["INPUT_COMMENT_HEADER"]
+MESSAGE_HEADER = os.environ["INPUT_MESSAGE_HEADER"]
 EMPTY_CHECKMARK = "- [ ]"
 
 
 def dod_criteria_to_message(dod_criteria):
-    message = COMMENT_HEADER + "\n"
+    message = MESSAGE_HEADER + "\n"
     for criterion in dod_criteria:
         message += EMPTY_CHECKMARK + " " + criterion + "\n"
     return message
 
 
 def has_bot_comment(pull_request_description):
-    return COMMENT_HEADER in pull_request_description
+    return MESSAGE_HEADER in pull_request_description
 
 
 def has_unsatisfied_dod(pull_request_description, dod_criteria):
     # Extract the bot message from the pull request description
-    bot_message_begin = pull_request_description.find(COMMENT_HEADER)
+    bot_message_begin = pull_request_description.find(MESSAGE_HEADER)
     last_criterion = dod_criteria[-1]
     bot_message_end = pull_request_description.find(last_criterion)
     if bot_message_end == -1: