option handling to use the same style throughout all Cygwin utils.
Throughout use program_invocation_short_name to refer to current
process name in Cygwin executables.
* utils.sgml: Align documentation to above change. Add missing
sections for getconf, ldd, and setmetamode.
* strace.cc (proc_child): Avoid compiler warning.
(main): Don't reuse local variables confusingly. Don't print any file
information if acl() fails. Improve error message. Always print a
trailing empty line. Set return code to 2 if accessing some file fails.
instead.
* getfacl.c: Add include to remove warning.
* mkgroup.c (main): Assign variables outside of parameter passing. This seems
to eliminate some compiler warnings.
(groupname): Ditto.
(usage): Ditto. Add more user friendly help text.
(main): Add -n and --help option. Print names instead of IDs
unless -n option is given.
* setfacl.c (getperm): Tolerate whitespace and comment chars in input.
(getaclentry): Fix several input string misdetections.
(getaclentries): Allow - as input file name to read from stdin.
Tolerate whitespace and comment chars in input.
(usage): Add more user friendly help text.
(main): Add --help option.
