New comment by st3r4g on void-packages repository

https://github.com/void-linux/void-packages/pull/29115#issuecomment-787429396

Comment:
Looks like this works (tested on a fakeroot for now):
```
diff --git a/srcpkgs/runit-void/template b/srcpkgs/runit-void/template
index c495a45a3d..86b0cc58e3 100644
--- a/srcpkgs/runit-void/template
+++ b/srcpkgs/runit-void/template
@@ -1,7 +1,7 @@
 # Template file for 'runit-void'
 pkgname=runit-void
 version=20200720
-revision=1
+revision=2
 wrksrc="void-runit-${version}"
 build_style=gnu-makefile
 short_desc="Void Linux runit scripts"
@@ -28,9 +28,21 @@ make_dirs="
  /etc/zzz.d/suspend 0755 root root
  /etc/zzz.d/resume 0755 root root"
 
+alternatives="
+ void-init:init:/usr/bin/runit-init
+ void-init:halt:/usr/bin/halt-runit
+ void-init:poweroff:/usr/bin/poweroff-runit
+ void-init:reboot:/usr/bin/reboot-runit
+ void-init:shutdown:/usr/bin/shutdown-runit
+"
+
 post_install() {
        vmkdir usr/bin
        mv ${DESTDIR}/usr/sbin/* ${DESTDIR}/usr/bin
+       mv ${DESTDIR}/usr/bin/halt ${DESTDIR}/usr/bin/halt-runit
+       mv ${DESTDIR}/usr/bin/poweroff ${DESTDIR}/usr/bin/poweroff-runit
+       mv ${DESTDIR}/usr/bin/reboot ${DESTDIR}/usr/bin/reboot-runit
+       mv ${DESTDIR}/usr/bin/shutdown ${DESTDIR}/usr/bin/shutdown-runit
        vconf ${FILESDIR}/hostname
        vconf ${FILESDIR}/os-release
        vconf ${FILESDIR}/locale.conf
@@ -40,7 +52,6 @@ post_install() {
        rm -f ${DESTDIR}/etc/runit/runsvdir/current
        rm -rf ${DESTDIR}/etc/runit/runsvdir/default
        rm -rf ${DESTDIR}/etc/runit/runsvdir/single
-       ln -s runit-init ${DESTDIR}/usr/bin/init
 }
 
 runit-void-apparmor_package() {
```
the files are being replaced by symlinks correctly.