Zbigniew Jędrzejewski-Szmek
5597a78df2
parse_argv() uses FOREACH_OPTION (not _OR_RETURN) so we can preserve the
existing PID 1 tolerance: an unknown option, or one of the sysvinit-style
-b/-s/-z catch-alls, returns 0 instead of -EINVAL when getpid_cached() == 1.
The docs documented --crash-vt=, but the code implemented "crash-chvt",
as introduced in b9e74c3994.
The output from --help is now modified to match code.
getopt-defs.h is intentionally left in place since
proc_cmdline_filter_pid1_args() in src/basic/proc-cmdline.c still uses
its COMMON_/SYSTEMD_/SHUTDOWN_GETOPT_* macros to walk the kernel
command line.
Previously, opterr=0 was used to suppress error messages about option
parsing in PID1. They are now logged at debug level (if debug logging
is enabled.)
Co-developed-by: Claude Opus 4.7 <noreply@anthropic.com>
System and Service Manager
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