Changed config loading error management.

envsetup.py

@@ -61,7 +61,10 @@ class EnvSetup():
             log('This script should be run as root user.')
             sys.exit(1)
         # Load conf
-        utils.load_conf()
+        conf = utils.load_conf()
+        if not conf:
+            log('No configuration loaded.')
+            sys.exit(1)
         if args:
             # Run command
             for arg in args:

utils.py

@@ -52,7 +52,7 @@ def load_conf():
         if not os.path.exists(path):
             log('The configuration file for EnvSetup script does not exist.\nPath of configuration file: %s' % path, error=True)
             if is_default:
-                sys.exit(1)
+                return dict()
         # Load conf
         with open(path, 'r') as fo:
             content = fo.read()