Corrected an error in detail::report_error_::generate_error_string().  It is now a bit smarter about how it constructs its error-line string.  It also no longer crashes when the matched range includes whitespace before the beginning of the error-line.
Corrected an error in detail::report_error_::generate_error_string().  It is
now a bit smarter about how it constructs its error-line string.  It also no
longer crashes when the matched range includes whitespace before the beginning
of the error-line.


tzlaine/GG,tzlaine/GG,tzlaine/GG,tzlaine/GG