Only those places in the README where an error is explicitly found in the
main function have been updated. Other uses of exit are left untouched as
there is not enough context to know if return will work in that location.
Signed-off-by: Sean Robinson <sean.robinson@scottsdalecc.edu>
Resolves the following build error:
CMake Error at CMakeLists.txt:26 (ADD_EXECUTABLE):
Target "ARGPARSE_SAMPLE_custom_assignment_characters" links to target
"argparse::argparse" but the target was not found. Perhaps a
find_package() call is missing for an IMPORTED target, or an
ALIAS target is missing?
Signed-off-by: Sean Robinson <sean.robinson@scottsdalecc.edu>