report: accept a report ID that ends with a newline

Plain-text replies usually end with one, and the ID check counted it as
part of the ID, so a report that was sent was said to have failed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

report

@@ -134,6 +134,8 @@ send() {
   code="${response##*$'\n'}"
   body="${response%$'\n'*}"
   [[ "$response" == *$'\n'* ]] || body="$response"
+  # Without the newline that usually ends a reply
+  body="${body%"${body##*[![:space:]]}"}"
   # A 2xx that isn't a report ID is some other page, not the receiver
   if (( status == 0 )) && [[ "$code" == 2?? && "$body" =~ ^[A-Za-z0-9-]{1,40}$ ]]; then
     echo "Sent. Thank you! Your report's ID is $body; mention it if you contact us about this."