bftpd: update to 5.7.

By ericonr:
- move all Makefile changes to a vsed in post_configure; more
  semantically correct
- slight cleanup in allowing do_install from the build style to happen
  and only install extras in post_install

Closes: #31290 [via git-merge-pr]

srcpkgs/bftpd/template

@@ -1,6 +1,6 @@
 # Template file for 'bftpd'
 pkgname=bftpd
-version=5.6
+version=5.7
 revision=1
 wrksrc="$pkgname"
 build_style=gnu-configure
@@ -11,17 +11,17 @@ maintainer="Norbert Vegh <vegh@norvegh.com>"
 license="GPL-2.0-only"
 homepage="http://bftpd.sourceforge.net/"
 distfiles="${SOURCEFORGE_SITE}/bftpd/bftpd-${version}.tar.gz"
-checksum=1094f25afc23c24a1b63db7ebe9f9b72bba4bc3b9245d13d8054ad724ea37aa2
+checksum=a543ce62a8092a7b5065146875cc9878534b09dc4a853f2c2b56e2de397a6f4b
 
 CFLAGS="-fcommon"
 
-pre_build() {
-	sed -i "s|LDFLAGS=$|LDFLAGS=${LDFLAGS}|" Makefile
+post_configure() {
+	vsed -i -e "s|LDFLAGS=$|LDFLAGS=${LDFLAGS}|" \
+		-e "s|sbin|bin|g" \
+		Makefile
 }
 
-do_install() {
-	sed -i 's,sbin,bin,g' Makefile
-	make PREFIX=/usr DESTDIR=${DESTDIR} install
+post_install() {
 	vsv bftpd
 	vconf bftpd.conf
 }