K 10
svn:author
V 7
dchagin
K 8
svn:date
V 27
2016-03-08T15:12:49.875070Z
K 7
svn:log
V 312
According to POSIX and Linux implementation the alarm() system call
is always successfull.
So, ignore any errors and return 0 as a Linux do.

XXX. Unlike POSIX, Linux in case when the invalid seconds value specified
always return 0, so in that case Linux does not return proper remining time.

MFC after:	1 week

END