postgresql: refactor removal of references in bitcode files

This prevents silently ignoring errors from "find".

pkgs/servers/sql/postgresql/generic.nix

@@ -217,8 +217,8 @@ let
  # Those are only used when building e.g. extensions, so go to $dev.
  moveToOutput "lib/*.a" "$dev"
  '' + lib.optionalString jitSupport ''
- # In the case of JIT support, prevent a retained dependency on clang-wrapper
- nuke-refs $out/lib/llvmjit_types.bc $(find $out/lib/bitcode -type f)
+ # In the case of JIT support, prevent useless dependencies on header files
+ find "$out/lib" -iname '*.bc' -type f -exec nuke-refs '{}' +
 
  # Stop lib depending on the -dev output of llvm
  remove-references-to -t ${llvmPackages.llvm.dev} "$out/lib/llvmjit${dlSuffix}"