initialize resp_length = 0 in tls.c

[gojimmypi]

Description

This warning was being treated as an error:

Error    'resp_length' may be used uninitialized in this function: [..] wolfssl\src\tls.c

Fixes zd# n/a

Testing

How did you test?

Applied change and verified wolfcrypt/benchmark/benchmark and wolfcrypt/test/testwolfcrypt ran successfully.

git clone https://github.com/gojimmypi/wolfssl.git --branch gojimmypi-initialize-resp_length --depth 1
cd wolfssl
./autogen.sh
./configure
make all
./wolfcrypt/benchmark/benchmark
./wolfcrypt/test/testwolfcrypt

Checklist

• added tests
• updated/added doxygen
• updated appropriate READMEs
• Updated manual and documentation