fixed indentation of debug output

src/pluto/log.c

@@ -115,6 +115,7 @@ static void pluto_dbg(int level, char *fmt, ...)
 
 		if (log_to_stderr)
 		{
+			fprintf(stderr, "| ");
 			vfprintf(stderr, fmt, args);
 			fprintf(stderr, "\n");
 		}