Allow dot at start of symbol per documentation The documentation says symbols can start with a dot. Also, source code in the wild that uses symbols starting with a dot has turned up. In theory, it shouldn't cause any problems to have symbols starting with dots.

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

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