libkeybinder2: Remove _offname that was used just in the distfiles

and wrksrc variable. Also, include gtk-doc in hostmakedepends and
force the source file to be written to a properly named *.tar.gz.

srcpkgs/libkeybinder2/template

@@ -1,19 +1,18 @@
 pkgname=libkeybinder2
-_offname=keybinder
 version=0.3.0
 revision=1
 build_style=gnu-configure
 build_options="gir"
 configure_args="$(vopt_enable gir introspection)"
-hostmakedepends="automake libtool pkg-config intltool gnome-common"
+hostmakedepends="automake libtool pkg-config intltool gnome-common gtk-doc"
 makedepends="pygtk-devel $(vopt_if gir gobject-introspection)"
 short_desc="Library for registering global keyboard shortcuts (GTK+2)"
 maintainer="ShadowKyogre <shadowkyogre.public@gmail.com>"
 homepage="https://github.com/engla/keybinder"
 license="GPL-2"
-distfiles="https://github.com/engla/${_offname}/archive/v${version}.tar.gz"
+distfiles="https://github.com/engla/keybinder/archive/v${version}.tar.gz>${pkgname}-${version}.tar.gz"
 checksum=8e8d77386b9e29556fab097c31aec643d36a33d201733b7b999179abcba7774e
-wrksrc=${_offname}-${version}
+wrksrc=keybinder-${version}
 
 # Disable gir for cross builds.
 if [ -z "$CROSS_BUILD" ]; then