[BZ #322]

[BZ #322]

Update.
	* intl/dcigettext.c (DCIGETTEXT): Protect tfind/tsearch calls.
	* intl/dcigettext.c (_nl_find_msg): Call _nl_load_domain also if
	decided < 0.
	* intl/finddomain.c (_nl_find_domain): Likewise.
	* intl/l10nflist.c (_nl_make_l10nflist): Initialize lock.
	* intl/loadinfo.h (struct loaded_l10nfile): Add lock element.
	* intl/loadmsgcat.c (_nl_load_domain): Set decided to 1 only once we
	are done.  First set to -1 to signal initialization is ongoing.
	Protect against concurrent callers with recursive lock.
	duplicate address recognition does not copy junk.  [BZ #322]