ulimit_spec() coverage

specification LongT ulimit_spec( CallContext context, IntT cmd, List *params, ErrorCode *errno )

coverages	branches	failures	hits/fails
C	cmd == UL_GETFSIZE	failure 228: Requirement failed: {ulimit.02} UL_GETFSIZE:The return value shall be the soft file size limit divided by 512 failure 229: Requirement failed: {ulimit.02} UL_GETFSIZE:The return value shall be the soft file size limit divided by 512	2/2
	soft < param < hard		0
	param < soft		0
	Hard limit shall increase		0
	Hard limit would increase		0
	Another cmd		0
	16% (1/6)		2/2