fix slight spacing issue in list's empty value #1821

Job	Run time
test (postgres, postgres, postgres://root:[email protected]/sqlpage)	1m 49s
compile_and_lint	1m 34s
docker_build (linux/arm64)	5m 56s
test (odbc, postgres, Driver=/usr/lib/x86_64-linux-gnu/odbc/psqlodbcw.so;Server=127.0.0.1;Port=54...	3m 18s
test (mysql, mysql, mysql://root:[email protected]/sqlpage)	1m 36s
docker_build (linux/arm/v7)	5m 9s
test (mssql, mssql, mssql://root:[email protected]/sqlpage)	1m 32s
docker_build (linux/amd64)	5m 0s
windows_test	4m 49s
docker_push	13s
docker_build (linux/amd64)	5m 0s
compile_and_lint	1m 34s
docker_build (linux/arm/v7)	5m 9s
test (postgres, postgres, postgres://root:[email protected]/sqlpage)	1m 49s
docker_build (linux/arm64)	5m 56s
test (odbc, postgres, Driver=/usr/lib/x86_64-linux-gnu/odbc/psqlodbcw.so;Server=127.0.0.1;Port=54...	2m 6s
test (mysql, mysql, mysql://root:[email protected]/sqlpage)	1m 36s
test (mssql, mssql, mssql://root:[email protected]/sqlpage)	1m 32s
docker_push	13s
windows_test	4m 49s
	1h 0m 40s

Provide feedback