more thorough fix for systems with strange socklen_t

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/networking/ifconfig.c b/networking/ifconfig.c
index 1e960d4..1a56c1c 100644
--- a/networking/ifconfig.c
+++ b/networking/ifconfig.c
@@ -36,8 +36,8 @@
 #include <sys/types.h>
 #include <netinet/if_ether.h>
 #endif
-#include "inet_common.h"
 #include "libbb.h"
+#include "inet_common.h"
 
 #if ENABLE_FEATURE_IFCONFIG_SLIP
 # include <net/if_slip.h>