make a .rsp file for `zig clang`

same as std.build.LibExeObjStep.make() for `zig build-exe`
closes #12419
9db293492bHadrien Dorio committed on 10/26/2022, 9:50:51 PM· committed by Veikka Tuominenparent875e98a
2 files changedLine totals unavailable