terminal_log: carriage-return on newline

This is expected by hardware terminals, ie., terminal programs connected
to null-modem serial connections. Otherwise, the next line starts at the
column right after the last line.

repos/os/src/server/terminal_log/main.cc

@@ -83,6 +83,9 @@ namespace Genode {
 				if ((len > 0) && (string[len - 1] != '\n'))
 					_terminal.write("\n", 1);
 
+				/* carriage-return as expected by hardware terminals on newline */
+				_terminal.write("\r", 1);
+
 				return len;
 			}
 	};