container-executor.c

YARN-9442. container working directory has group read permissions. Contributed by Jim Brennan.
(cherry picked from commit 2ac029b949f041da2ee04da441c5f9f85e1f2c64)

Conflicts:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/test/test-container-executor.c

(cherry picked from commit cec71691be76577718b22f936aea9e2b2cd100ea)

Conflicts:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.c

(cherry picked from commit db88224e8f9d164ac811fcca9efe4a350cebecd1)