openmw: rebuild for gcc stdc++ dropping gcc4 compat

srcpkgs/openmw/template

@@ -1,7 +1,7 @@
 # Template file for 'openmw'
 pkgname=openmw
 version=0.43.0
-revision=4
+revision=5
 wrksrc="${pkgname}-${pkgname}-${version}"
 build_style=cmake
 configure_args="-DDESIRED_QT_VERSION=5"
@@ -11,7 +11,7 @@ makedepends="libXt-devel libunshield-devel libmygui-devel osg-devel
  ffmpeg-devel libavformat libavutil libswscale libswresample"
 short_desc="Open Implementation of Morrowind's Engine"
 maintainer="JohnZ <johnz@posteo.net>"
-license="GPL-3"
+license="GPL-3.0-or-later"
 homepage="http://openmw.org"
 distfiles="https://github.com/OpenMW/${pkgname}/archive/${pkgname}-${version}.tar.gz"
 checksum=c4f0258d35fe1c181c2c609658467e1560ce262d02bf5e92b064d7b14e97f086