bpf: Use hyphens in directory names instead of underscores

src/network/bpf/sysctl-monitor/sysctl-monitor-skel.h

@@ -13,4 +13,4 @@
 #define bpf_object__load_skeleton sym_bpf_object__load_skeleton
 #define bpf_object__open_skeleton sym_bpf_object__open_skeleton
 
-#include "bpf/sysctl_monitor/sysctl-monitor.skel.h"
+#include "bpf/sysctl-monitor/sysctl-monitor.skel.h"

src/network/meson.build

@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: LGPL-2.1-or-later
 
-subdir('bpf/sysctl_monitor')
+subdir('bpf/sysctl-monitor')
 
 systemd_networkd_sources = files(
         'networkd.c'

src/network/networkd-sysctl.c

@@ -29,8 +29,8 @@
 #if HAVE_VMLINUX_H
 
 #include "bpf-link.h"
-#include "bpf/sysctl_monitor/sysctl-monitor-skel.h"
-#include "bpf/sysctl_monitor/sysctl-write-event.h"
+#include "bpf/sysctl-monitor/sysctl-monitor-skel.h"
+#include "bpf/sysctl-monitor/sysctl-write-event.h"
 
 static struct sysctl_monitor_bpf* sysctl_monitor_bpf_free(struct sysctl_monitor_bpf *obj) {
         sysctl_monitor_bpf__destroy(obj);