Fix bug related to parsing \x sequences under pragma cstrings Fix the test for lower case letter digits to test for the full range of hex digit values instead of just 0 to 9 when deciding to apply the correction factor for lower case.

\.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$