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a39cfda7ba
* cygcheck.cc: Add includes. (grep_packages): New global variable. (display_internet_error): New function. (safe_chars): New global variable. (base_url): Ditto. (package_grep): New function. (usage): Reword --help output for clarity. Document new argument. (longopts): Add 'package-query' option. (opts): Add 'p' option, reorder to be consistent with 'longopts'. (main): Accommodate new option. * utils.sgml (cygcheck): Update --help output. Document new -p option.