Fix easy build errors, like new old C / C++ errors

[rxrbln]

like:

21:16:10 Building 2-develop/electricfence (2_4_13) Building in src.electricfence.cross.20221214.211610.28082.ryzen, with 32 threads Writing output to $root/var/adm/logs/2-electricfence.out ! efencepp.cpp:159:1: error: ISO C++17 does not allow dynamic exception specifications ! 159 | throw( std::bad_alloc ) ! | ^~~~~ ! efencepp.cpp:201:1: error: ISO C++17 does not allow dynamic exception specifications ! 201 | throw( std::bad_alloc ) ! | ^~~~~