bk: update to 7.3.1.

Drop "ce" from version number, it confuses xbps.

srcpkgs/bk/template

@@ -1,7 +1,9 @@
 # Template file for 'bitkeeper'
 pkgname=bk
-version=7.3ce
+version=7.3.1
 revision=1
+reverts="7.3ce"
+wrksrc="bk-${version}ce"
 hostmakedepends="gperf groff perl bison pkg-config"
 makedepends="libXft-devel libtomcrypt-devel libtommath-devel pcre-devel lz4-devel"
 # bundles: tcl tk
@@ -9,8 +11,8 @@ short_desc="BitKeeper Distributed Source Control System"
 maintainer="Christian Neukirchen <chneukirchen@gmail.com>"
 license="Apache-2.0"
 homepage="https://www.bitkeeper.org/"
-distfiles="https://www.bitkeeper.org/downloads/${version}/${pkgname}-${version}.tar.gz"
-checksum=13249636f4b5b39f1d64b9f6bf682ee2dce53db17cdd8aa4cd9019e65252cabb
+distfiles="https://www.bitkeeper.org/downloads/${version}ce/${pkgname}-${version}ce.src.tar.gz"
+checksum=8784fe01722ebac7d93854c25a3aa203ec2751d90d06b036003868f2d8e6d250
 
 # Needs reworking of the build system.
 nocross=yes

srcpkgs/bk/update

@@ -1 +1,2 @@
 site='https://www.bitkeeper.org/downloads/latest/'
+pattern='bk-[\d.]+'