strace: change licenses

"The test suite is now provided under the terms of
the GNU General Public License version 2 or later."

"All the rest of strace is now provided under the terms of
the GNU Lesser General Public License version 2.1 or later."

> https://github.com/strace/strace/blob/27739ebccc96c0f70cd2aeb37fd7b0ecfef21724/NEWS#L4

pkgs/development/tools/misc/strace/default.nix

@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     homepage = https://strace.io/;
     description = "A system call tracer for Linux";
-    license = licenses.bsd3;
+    license =  with licenses; [ lgpl21Plus gpl2Plus ]; # gpl2Plus is for the test suite
     platforms = platforms.linux;
     maintainers = with maintainers; [ jgeerds globin ];
   };