Enable checking for the string format issues because:
1) Fedora and Ubuntu have format checking generating errors as mandatory for the ruby gem builds.
If "-Wno-format" is hardcoded here it will collide and fail with the in-build option of -Werror=format-security passed to the make.
2) There was one potential format vulnerability found in rb_compression_options.c
The Beta API has an execution date and RPC Framework is but a distant
memory.
This test is flaky with Python 3.5 on Windows! Some mysteries will just
have to remain unsolved...
Currently, `warning: sdist: standard file not found` warning is always
printed when creating source distribution for gRPC python reflection
package. This should stop that.
1. Organize collapsed ruby yard doc.
2. Update contents about ClientStub#bidi_streamer because
bidi#writes_done hasn't existed.
https://github.com/grpc/grpc/pull/14535#discussion_r171452923
3. Fix yardoc warnings.
Warings:
[warn]: Invalid tag format for @return in file `lib/grpc/core/time_consts.rb` near line 36
[warn]: @param tag has duplicate parameter name: set_input_stream_done
in file `lib/grpc/generic/bidi_call.rb' near line 70
[warn]: Unknown tag @result in file `lib/grpc/generic/rpc_server.rb` near line 287
[warn]: @param tag has unknown parameter name:
in file `lib/grpc/generic/interceptors.rb' near line 158
[warn]: In file `lib/grpc/generic/rpc_server.rb':217: Cannot resolve link to key: from text:
...{key: val, ..}
[warn]: In file `lib/grpc/generic/rpc_server.rb':217:
Cannot resolve link to key: from text:
...{key: val, ..}