community/owfs: use apk-tools compatible version in pkgconfig

Adding an underscore doesn't change the version for pkgconfig since it
ignores characters like underscores.

community/owfs/APKBUILD

@@ -3,7 +3,7 @@
 pkgname=owfs
 pkgver=3.2_p4
 _pkgver=${pkgver//_/}
-pkgrel=0
+pkgrel=1
 pkgdesc="OWFS — the one-wire filesystem"
 url="https://github.com/owfs/owfs-doc/wiki"
 arch="all"
@@ -34,6 +34,9 @@ build() {
 
 package() {
 	make DESTDIR="$pkgdir" install
+
+	# apk-tools compatible version
+	sed -i 's/^\(Version: .*\)p/\1_p/' "$pkgdir"/usr/lib/pkgconfig/owcapi.pc
 }
 
 sha512sums="