#24 cmt_sep_char and cmt_keep-char mangle c++ comments

[Jeff Hansen]

GC v1.140 generates a malformed c++ comment when the
cmt_sep_char used for a function matches a
cmt_keep-char. When configured to use "*" as the
seperator character for function headers and when "/**"
is configured as a protected comment the function
headers are mangled.

The attached file shows the settings used, and sample
input and output.

I have not figured out how to fix this one.

[Jeff Hansen]

Example of malfunction