fix shellcheck error

Author: dbarker

ci/do_ci.sh

@@ -103,7 +103,7 @@ if [ -n "$CMAKE_TOOLCHAIN_FILE" ]; then
   CMAKE_OPTIONS+=("-DCMAKE_TOOLCHAIN_FILE=$CMAKE_TOOLCHAIN_FILE")
 fi
 
-echo "CMAKE_OPTIONS: ${CMAKE_OPTIONS[@]}"
+echo "CMAKE_OPTIONS:" "${CMAKE_OPTIONS[@]}"
 
 export CTEST_OUTPUT_ON_FAILURE=1