Ensure Salt inventory dir default is absolute path

Signed-off-by: martin f. krafft <madduck@madduck.net>
diff --git a/reclass/adapters/salt.py b/reclass/adapters/salt.py
index 705e576..5b132a8 100755
--- a/reclass/adapters/salt.py
+++ b/reclass/adapters/salt.py
@@ -51,9 +51,10 @@
 
 def cli():
     try:
+        inventory_dir = os.path.abspath(os.path.dirname(sys.argv[0]))
         defaults = {'pretty_print' : True,
                     'output' : 'yaml',
-                    'inventory_base_uri': os.path.dirname(sys.argv[0])
+                    'inventory_base_uri': inventory_dir
                    }
         defaults.update(find_and_read_configfile())
         options = get_options(RECLASS_NAME, VERSION, DESCRIPTION,