fuzz: include library headers first

src/libsystemd-network/fuzz-dhcp-client.c

@@ -4,11 +4,10 @@
 #include <sys/socket.h>
 #include <unistd.h>
 
+#include "sd-dhcp-client.c"
+
 #include "alloc-util.h"
 #include "fuzz.h"
-#include "sd-event.h"
-
-#include "sd-dhcp-client.c"
 
 int dhcp_network_bind_raw_socket(
                 int ifindex,

src/libsystemd-network/fuzz-dhcp-server-relay.c

@@ -4,10 +4,10 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 
-#include "fuzz.h"
-
 #include "sd-dhcp-server.c"
 
+#include "fuzz.h"
+
 ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, const struct sockaddr *dest_addr, socklen_t addrlen) {
         return len;
 }

src/libsystemd-network/fuzz-dhcp-server.c

@@ -4,10 +4,10 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 
-#include "fuzz.h"
-
 #include "sd-dhcp-server.c"
 
+#include "fuzz.h"
+
 /* stub out network so that the server doesn't send */
 ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, const struct sockaddr *dest_addr, socklen_t addrlen) {
         return len;