Delimit comment in template using correct syntax

Enclose the comment in '{# #}' instead of beginning line with '#'.
minor #1484 Delimit comment in template using correct syntax (johnberberich)

This PR was merged into the 1.16-dev branch.

Discussion
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Delimit comment in template using correct syntax

Enclose the comment in '{# #}' instead of beginning line with '#'.

Commits
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4e1515c Delimit comment in template using correct syntax