surprise newline at the end of info-level cbt log

In circuit_expire_building() there is an info-level log that logs a \n character:

         log_info(LD_CIRC,
-                 "Deciding to count the timeout for circuit %"PRIu32"\n",
+                 "Deciding to count the timeout for circuit %"PRIu32,
                  TO_ORIGIN_CIRCUIT(victim)->global_identifier);

the result is that I get strange blank lines in my log. I see them most obviously when I am doing

grep -v "\[info\]" /path/to/log-file|less