Fix trying to strip newline from empty prompt and cfg prompt file content

[KerfuffleV2]

If the prompt or CFG negative prompt file options are set to an empty file, attempting to strip a newline currently causes a memory error. This small fix just makes sure the files aren't empty. I found this out the fun way (don't ask why I set -f /dev/null).

Also, GCC's address sanitizer is pretty handy. Maybe there should be a LLAMA_ADDRESS_SANITIZER option that just adds -fsanitize=address -g to the CFLAGS and CXXFLAGS. I believe this will work with Clang also. It even seems to work when compiling with optimizations turned on and is way faster than Valgrind.

[cebtenzzre]

Maybe there should be a LLAMA_ADDRESS_SANITIZER option that just adds -fsanitize=address -g to the CFLAGS and CXXFLAGS.

The cmake build script has LLAMA_SANITIZE_ADDRESS.

[KerfuffleV2]

The cmake build script has LLAMA_SANITIZE_ADDRESS.

Ahh, I'm not a fan of cmake. Maybe I'll see about making the normal Makefile support it as well. Thanks for the information.