cobol: sqrt(0) is not an ec-argument error. [PR119885]

libgcobol

	PR cobol/119885
	* intrinsic.cc: (__gg__sqrt): Change test from <= zero to < zero.

gcc/testsuite

	* cobol.dg/group2/FUNCTION_SQRT__2_.cob: Testcase.
	* cobol.dg/group2/FUNCTION_SQRT__2_.out: Known-good for the testcase.

(cherry picked from commit d44beb132850a8ced1b0614e2724f18465b4a737)
3 files changed