Merge PR #23243 into master

* refs/pull/23243/head:
	mon/OSDMonitor: remove ambiguous type case for 'osd pool set' value
	mon: use throwing variant of cmd_getval
	common/cmdparse: add cmd_getval_throws variants that throw bad_cmd_get
	mon: catch bad_cmd_exception and reply EINVAL
	common/cmdparse: add bad_cmd_get exception

Reviewed-by: xie xingguo <xie.xingguo@zte.com.cn>
Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>