t1092: replace incorrect 'echo' with 'cat'

This fixes the test data shape to be as expected, allowing rename
detection to work properly now that the 'larger-content' file actually
has meaningful lines.

Reviewed-by: Elijah Newren <[email protected]>
Signed-off-by: Derrick Stolee <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: derrickstolee

t/t1092-sparse-checkout-compatibility.sh

@@ -40,7 +40,7 @@ test_expect_success 'setup' '
 		done &&
 
 		git checkout -b rename-base base &&
-		echo >folder1/larger-content <<-\EOF &&
+		cat >folder1/larger-content <<-\EOF &&
 		matching
 		lines
 		help