From 030a8552db2b73ab9fc2980dbf66a43680d7ba18 Mon Sep 17 00:00:00 2001
From: login
Date: Wed, 6 Jan 2021 13:05:23 +0000
Subject: Added comment to tcoin.cpp

Added comment to tcoin.cpp to send the actual error message to
stderr when running exit_program(err_no).
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