TEST: fixed tests for Oldes/Rebol-issues#1862 and Oldes/Rebol-issues#2468

Author: Oldes

src/tests/units/call-test.r3

@@ -79,13 +79,13 @@ rebol-cmd: func[cmd][
 	--test-- "User controlled error output"
 		;@@ https://github.com/Oldes/Rebol-issues/issues/2468
 		; the port should be renamed from `input` to `io` or `console`, because it is not just an input!!
-		--assert 0 = rebol-cmd {--do "prin 1 modify system/ports/input 'error on prin 2 modify system/ports/input 'error off prin 3}
+		--assert 0 = rebol-cmd {--do "prin 1 modify system/ports/input 'error on prin 2 modify system/ports/input 'error off prin 3"}
 		--assert "13" = out-buffer
 		--assert "2"  = err-buffer
 
 	--test-- "Error printed to stderr"
 		;@@ https://github.com/Oldes/Rebol-issues/issues/1862
-		--assert -1 = rebol-cmd {--do "prin 1 1 / 0}
+		--assert 0 <> rebol-cmd {--do "prin 1 1 / 0"} ; returned number is not same across all systems!
 		--assert "1" = out-buffer
 		--assert not none? find err-buffer "Math error"