How to insert long DKIM keys with resource_record?

[WetHippie]

I'm trying to insert some 2048 byte DKIM keys into DNS using the resource_record script. Since nsupdate is not keen on having lines that long, I need to build it as a multiline input. I've tried both using the data field as an array and forcing in my own newline characters, but neither seems to work and generates the long line

Error: /Stage[main]/Mail_server::Relay/Dns::Hosted::Mailsec[choicetransformer.com]/Resource_record[smtp-choicetransformer.com-DKIM-record]: Could not evaluate: Execution of '/bin/nsupdate -y hmac-sha256:local-update:js/2XlzFVnv6N+pYbscACcHieMMUfm9bXsXF2rx+O53MIsUm8VhxNQfu Um+fu3VuYc/QDya71bd/ur3Xw+l6cA== /tmp/dns_rr-nsupdate-20180404-13563-tq504h' returned 1: 04-Apr-2018 12:39:36.664 dns_rdata_fromtext: buffer-0x7f6f5c169490:1: near '"v=DKIM1;': syntax error invalid rdata format: syntax error syntax error

And the RR file is:

server ns1.infrastructure.choice zone powerup.community update add smtp._domainkey.powerup.community. 180000 IN TXT "v=DKIM1; k=rsa; p=AAAAB3NzaC1yc2EAAAADAQABAAABAQDca2MXUUOn8A4QtFrS6+aRAUK4a4TLTm yDc6EMWN7nJhq8Kyoav9g5ICGrVqi4EzRqook21CQCMWHrSNILl9N+movXj9tD1g+Gii 7J7lqe5DLae2+CeigEuQ\no2Z9cAbvoKQagM5fHkyXB0l1FELi/BMjiZxopIwPSpkvhGNxQpyVz69kU1kGbWyyXcHd5GS0Wvpi8f4RhlMSUfp7hlgS\nnqYXI43btYZk0GPjd1HhDhEqWAPj5OtoWaeAE5zj1EUQjKbMSsjV/tT4a9vZ2zOhQe1+zZkL8WON4TRjRI9Usqdvo1KpOdeE3kAnD/SLK9yDzzkjeBQGCCIVn23CZVZxo7"

Note the \n char from puppet's insert results in literal \n appearing in the output stream, rather than turning it into a newline in the temp file.