case-lib: lib.sh fix restore_pulseaudio not work

remove 'nohup' with sudo command to avoid reset sudo
kill extend 'sudo' process for pulseaudio after restore finish

Signed-off-by: Wu, BinX <binx.wu@intel.com>

Author: Bin-QA

case-lib/lib.sh

@@ -128,7 +128,7 @@ func_lib_restore_pulseaudio()
     do
         user=${line%% *}
         cmd=${line#* }
-        nohup sudo -u "$user" "$cmd" >/dev/null &
+        sudo -u "$user" -i "$cmd" 2>/dev/null &
     done
     # now wait for the pulseaudio restore in the ps process
     timeout=10
@@ -143,6 +143,11 @@ func_lib_restore_pulseaudio()
         fi
     done
     dlogi "Restoring pulseaudio takes $wait_time seconds"
+    # kill father process cause by sudo
+    sudo_pid_lst="$(pidof sudo)"
+    if [ "$sudo_pid_lst" ];then
+        sudo kill -9 "$sudo_pid_lst"
+    fi
     unset PULSECMD_LST
     unset PULSE_PATHS
     declare -ag PULSECMD_LST