libsigc++: remove long_desc.

srcpkgs/libsigc++/template

@@ -1,7 +1,7 @@
 # Template file for 'libsigc++'
 pkgname=libsigc++
 version=2.3.1
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--enable-static --disable-documentation"
 short_desc="Type-safe callback system for C++ programs"
@@ -10,19 +10,9 @@ homepage="http://libsigc.sourceforge.net/"
 license="LGPL-2.1"
 distfiles="${GNOME_SITE}/${pkgname}/${version%.*}/${pkgname}-${version}.tar.xz"
 checksum=67d05852b31fdb267c9fdcecd40b046a11aa54d884435e99e3c60dd20cd60393
-long_desc="
- libsigc++ implements a full callback system for use in widget
- libraries, abstract interfaces, and general programming. Originally
- part of the Gtk-- widget set, libsigc++ is now a separate library to
- provide for more general use. It is the most complete library of its
- kind with the ability to connect an abstract callback to a class
- method, function, or function object. It contains adaptor classes for
- connection of dissimilar callbacks and has an ease of use unmatched by
- other C++ callback libraries. Libsigc++ is licensed under the GNU
- Library General Public License, LGPL."
 
 libsigc++-devel_package() {
-	depends="libsigc++>=${version}"
+	depends="${sourcepkg}>=${version}_${revision}"
 	short_desc+=" - development files"
 	pkg_install() {
 		vmove usr/include