tests: Don't return -1 as program return value

In cases we use -1 for failure internally we still must return
EXIT_FAILURE.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

tests/qemucommandutiltest.c

@@ -146,8 +146,7 @@ mymain(void)
                                      "server.2.type=tcp,"
                                      "server.2.host=example.com");
 
-    return ret;
-
+    return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
 }
 
 VIR_TEST_MAIN(mymain)

tests/virnetdevbandwidthtest.c

@@ -156,7 +156,7 @@ mymain(void)
                  TC " filter add dev eth0 parent ffff: protocol all u32 match u32 0 0 "
                  "police rate 5kbps burst 7kb mtu 64kb drop flowid :1\n"));
 
-    return ret;
+    return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
 }
 
 VIR_TEST_MAIN_PRELOAD(mymain, VIR_TEST_MOCK("virnetdevbandwidth"))