Update main_unix_test.go (#10917)
Update main_unix_test.go (#10917)

so->,so

Signed-off-by: lixin18 <d07f34c39f764baee4eb2c2ef1946eb2e4608b76@users.noreply.github.com>
prometheus/prometheus,prometheus/prometheus,prometheus/prometheus,prometheus/prometheus,prometheus/prometheus