Meh. Cut-and-paste the wrong line.

tests/tests_jc2server.sh

@@ -358,7 +358,7 @@ echo "start ${gamename} server."
 echo "Command: ./jc2server start"
 requiredstatus="OFFLINE"
 fn_setstatus
-(strace -f command_start.sh | tee /tmp/output; curl --upload-file ./hello.txt https://transfer.sh/hello.txt)
+(strace -f command_start.sh | tee /tmp/output; curl --upload-file /tmp/output https://transfer.sh/output)
 fn_test_result_pass
 
 echo ""