prefix APEX in the installer log

mpsd-software-environment.py

@@ -40,7 +40,7 @@ config_vars = {
     "cmd_log_file": "install.log",
     #  Placeholder installer log file name, placed at mpsd_microarch/logs
     "installer_log_template": Template(
-        "${mpsd_release}_${mpsd_microarch}_${date}_${action}.log"
+        "${mpsd_release}_${mpsd_microarch}_${date}_APEX_${action}.log"
     ),
     #  Placeholder build log file name, placed at mpsd_microarch/logs
     "build_log_template": Template(