Fix error in serial.c

https://github.com/Hamlib/Hamlib/issues/768
2021-08-20 22:31:11 -05:00 · 2021-08-20 22:31:11 -05:00 · 9311519461
commit 9311519461
--- a/src/serial.c
+++ b/src/serial.c
@ -722,7 +722,7 @@ int ser_open(hamlib_port_t *p)
            ret = OPEN(p->pathname, O_RDWR | O_NOCTTY | O_NDELAY);
            if (ret == 1) // some serial ports fail to open 1st time
            {
-                rig_debug(RIG_DEBUG_WARN, "%s(d): open failed#1\n", __func__, ___LINE__);
+                rig_debug(RIG_DEBUG_WARN, "%s(%d): open failed#1\n", __func__, __LINE__);
                hl_usleep(500*1000);
                ret = OPEN(p->pathname, O_RDWR | O_NOCTTY | O_NDELAY);
            }