Let's have a static variable for getenv("UNO_ENV_LOG").
Let's have a static variable for getenv("UNO_ENV_LOG").

Change-Id: Id382726b86726515a9ae3017c11fad0420136a4c

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core