fixed check if burst

forogt adding check for strcmp() == 0

Author: DJ2LS

src/freedv_api.c

@@ -1389,7 +1389,7 @@ void freedv_get_fsk_S_and_N               (struct freedv *f, float *S, float *N)
 \*---------------------------------------------------------------------------*/
 int freedv_set_tuning_range(struct freedv *freedv, float val_fmin, float val_fmax) {
 
-    if (is_ofdm_data_mode(freedv) && (strcmp(freedv->ofdm->data_mode, "burst"))) {
+    if (is_ofdm_data_mode(freedv) && (strcmp(freedv->ofdm->data_mode, "burst") == 0)) {
         freedv->ofdm->fmin = val_fmin;
         freedv->ofdm->fmax = val_fmax;
         return 1;