• mqtt: don't send items between < and >

    From Rob Swindell@1:103/705 to GitLab note in main/sbbs on Sat Jan 21 18:52:02 2023
    https://gitlab.synchro.net/main/sbbs/-/issues/479#note_3105

    I considered JSON-encoding when first adding MQTT support and decided it was not advantageous: not all clients would have a JSON parser and human-readability was important to me.Also, it would have not made any difference to the reported issue here as < and > are perfectly valid characters in a JSON-encoded string value.
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    * Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)