elm327_handle_prompt(): Explain size of local buffer
authornorly <ny-git@enpas.org>
Tue, 26 Apr 2022 22:56:11 +0000 (00:56 +0200)
committernorly <ny-git@enpas.org>
Thu, 28 Apr 2022 00:23:34 +0000 (02:23 +0200)
commiteb2866d3b45253bba4a654201ca062e6ae387647
treecf9b83fd81a8fc01d49b16ab757d4b06a70eefd2
parentcf7dd7b99f1553ee042ba31ee602f37691d7d8a3
elm327_handle_prompt(): Explain size of local buffer

Also use snprintf() instead of sprintf()/strcpy(), to clarify the
size restriction.
module/elmcan.c