tests: Fix trailing whitespace

Change-Id: I3ef7a3f1c3247615619a0d01c92d8f80572b0dfe
diff --git a/src/tests/dummy_cn_sua.c b/src/tests/dummy_cn_sua.c
index f9b4244..aba6c8a 100644
--- a/src/tests/dummy_cn_sua.c
+++ b/src/tests/dummy_cn_sua.c
@@ -305,7 +305,7 @@
 		break;
 	case OSMO_PRIM(OSMO_SCU_PRIM_N_UNITDATA, PRIM_OP_INDICATION):
 		/* connection-oriented data received */
-		printf("N-UNITDATA.ind(%s)\n", 
+		printf("N-UNITDATA.ind(%s)\n",
 			osmo_hexdump(msgb_l2(oph->msg), msgb_l2len(oph->msg)));
 		rc = ranap_cn_rx_cl(cn_ranap_handle_cl, link, msgb_l2(oph->msg), msgb_l2len(oph->msg));
 		break;