fixup! sys/shell: add iw shell command

Author: fabian18

sys/shell/cmds/iw.c

@@ -165,7 +165,7 @@ static int _iw_connect(netif_t *iface, wifi_connect_request_t *request)
         return ret;
     }
     /* callback unlocks mutex */
-    ztimer_mutex_lock_timeout(ZTIMER_SEC, &_sync, SC_IW_AP_SCAN_TIMEOUT_SEC_MAX);
+    ztimer_mutex_lock_timeout(ZTIMER_SEC, &_sync, SC_IW_AP_CONNECT_TIMEOUT_SEC_MAX);
     mutex_unlock(&_sync);
     return 0;
 }
@@ -294,7 +294,7 @@ static int _iw_scan(netif_t *iface, wifi_scan_request_t *request)
         return ret;
     }
     /* callback unlocks mutex */
-    ztimer_mutex_lock_timeout(ZTIMER_SEC, &_sync, SC_IW_AP_CONNECT_TIMEOUT_SEC_MAX);
+    ztimer_mutex_lock_timeout(ZTIMER_SEC, &_sync, SC_IW_AP_SCAN_TIMEOUT_SEC_MAX);
     mutex_unlock(&_sync);
     return 0;
 }
@@ -364,16 +364,16 @@ int _iw_cmd(int argc, char **argv)
     int ret = -EINVAL;
     netif_t *iface = netif_get_by_name(argv[1]);
     if (!iface) {
-        printf("%s: invalid interface given", argv[0]);
+        printf("%s: invalid interface given\n", argv[0]);
         goto exit_failure;
     }
     if ((ret = _iw_probe(iface)) != 0) {
         if (ret == -ENOTSUP) {
-            printf("%s: interface is not Wi-Fi", argv[0]);
+            printf("%s: interface is not Wi-Fi\n", argv[0]);
             goto exit_failure;
         }
         else {
-            printf("%s: interface communication error", argv[0]);
+            printf("%s: interface communication error\n", argv[0]);
             goto exit_failure;
         }
     }