Update C++ podspec
diff --git a/gRPC-C++.podspec b/gRPC-C++.podspec
index 262de72..3911755 100644
--- a/gRPC-C++.podspec
+++ b/gRPC-C++.podspec
@@ -663,9 +663,9 @@
end
s.prepare_command = <<-END_OF_COMMAND
- find src/cpp/ -type f -exec sed -E -i'.back' 's;#include "third_party/nanopb/(.*)";#include <nanopb/\\1>;g' {} \\\;
- find src/cpp/ -name "*.back" -type f -delete
- find src/core/ -regex ".*\.h" -type f -exec sed -E -i'.back' 's;#include "third_party/nanopb/(.*)";#include <nanopb/\\1>;g' {} \\\;
- find src/core/ -name "*.back" -type f -delete
+ find src/cpp/ -type f ! -path '*.grpc_back' -print0 | xargs -0 -L1 sed -E -i'.grpc_back' 's;#include "(pb(_.*)?\\.h)";#include <nanopb/\\1>;g'
+ find src/cpp/ -type f -path '*.grpc_back' -print0 | xargs -0 rm
+ find src/core/ -type f ! -path '*.grpc_back' -print0 | xargs -0 -L1 sed -E -i'.grpc_back' 's;#include "(pb(_.*)?\\.h)";#include <nanopb/\\1>;g'
+ find src/core/ -type f -path '*.grpc_back' -print0 | xargs -0 rm
END_OF_COMMAND
end