Enable TLS1.3 and PEDANTIC in the coverage target

This make sure that the coverage is the same for the fuzzers and this
coverage target
Reviewed-by: NRich Salz <rsalz@openssl.org>
GH: #2088

.travis.yml

@@ -42,7 +42,7 @@ matrix:
           env: CONFIG_OPTS="--strict-warnings no-deprecated" BUILDONLY="yes"
         - os: linux
           compiler: gcc-5
-          env: CONFIG_OPTS="--debug --coverage no-asm enable-rc5 enable-md2 enable-ec_nistp_64_gcc_128 enable-ssl3 enable-ssl3-method enable-nextprotoneg enable-weak-ssl-ciphers enable-external-tests no-shared -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION" COVERALLS="yes" BORINGSSL_TESTS="yes" CXX="g++-5"
+          env: CONFIG_OPTS="--debug --coverage no-asm enable-tls1_3 enable-rc5 enable-md2 enable-ec_nistp_64_gcc_128 enable-ssl3 enable-ssl3-method enable-nextprotoneg enable-weak-ssl-ciphers enable-external-tests no-shared -DPEDANTIC -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION" COVERALLS="yes" BORINGSSL_TESTS="yes" CXX="g++-5"
         - os: linux
           compiler: clang-3.6
           env: CONFIG_OPTS="enable-msan"