fix sing-box-git

repo/sing-box-git/PKGBUILD

@@ -4,7 +4,7 @@
 pkgname=sing-box-git
 _pkgname=sing-box
 pkgver=1.4.0beta.5.r0.g9a45707e
-pkgrel=1
+pkgrel=2
 
 pkgdesc='The universal proxy platform (git version).'
 arch=('x86_64' 'i686')
@@ -37,7 +37,7 @@ sha256sums=(
 
 pkgver() {
     cd "${srcdir}/${_pkgname}"
-    git describe --tags --long | sed -E 's/([^-]*-g)/r\1/;s/-/./g;s/^v\.//'
+    git describe --tags --long | sed -E 's/([^-]*-g)/r\1/;s/-/./g;s/^v//'
 }
 
 _tags=with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_reality_server,with_clash_api,with_acme