Improve diagnostic message from lwlink when an object isn't needed Thanks to Mark R V Murray <mark@grondar.org> for this improvement to the diagnostic message when a specified object is not required when linking.

\.exe$
\.o$
\.d$
\.a$
~$
\.orig$
/lwbasic$
/lwlink$
/lwobjdump$
/lwar$
/lwasm$
/lwcc/lwcc$
/lwcc/lwcpp$

# for windows
\.suo$
\.sdf$
\.opensdf$
\Debug$
\Release$