syms: Add one newline to make things consistent

It is everywhere else.  I even remember one of our scripts failing if
the newline is missing, but it doesn't happen currently.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

src/libvirt_private.syms

@@ -2475,6 +2475,7 @@ virSocketAddrSetIPv6Addr;
 virSocketAddrSetIPv6AddrNetOrder;
 virSocketAddrSetPort;
 
+
 # util/virstorageencryption.h
 virStorageEncryptionFormat;
 virStorageEncryptionFree;