Attempt to fix boringssl tests
Commit changed the config target
element from 'cxx' to 'CXX'; catch up accordingly.
Also use a space to offset the template boundary, per convention.
[extended tests]
-IF[{- defined $target{cxx} && !$disabled{"external-tests"}-}]
+IF[{- defined $target{CXX} && !$disabled{"external-tests"} -}]
PROGRAMS_NO_INST=ossl_shim
SOURCE[ossl_shim]=ossl_shim.cc async_bio.cc packeted_bio.cc test_config.cc
INCLUDE[ossl_shim]=. include ../../include
