btrfs-progs: update to 4.9.1.

srcpkgs/btrfs-progs/template

@@ -1,8 +1,7 @@
 # Template file for 'btrfs-progs'
 pkgname=btrfs-progs
-reverts=4.9_1
-version=4.8.5
-revision=2
+version=4.9.1
+revision=1
 wrksrc=${pkgname}-v${version}
 build_style=gnu-configure
 configure_args="--disable-backtrace"
@@ -13,7 +12,7 @@ maintainer="Juan RP <xtraeme@voidlinux.eu>"
 license="GPL-2"
 homepage="http://btrfs.wiki.kernel.org/"
 distfiles="${KERNEL_SITE}/kernel/people/kdave/${pkgname}/${pkgname}-v${version}.tar.xz"
-checksum=d247b1c022aca5def3415bfa51e00c566cce36660a3ee517d4b6a1af911a08ef
+checksum=464a9bfd2b5eda76b0246ee0a4043f4de8d17c10312bc8b84abc5fbf9317fede
 
 pre_configure() {
 	NOCONFIGURE=1 ./autogen.sh