Modifies version_command to use pep440-git-full

Signed-off-by: Benjamin Diaz <bdiaz@whitestack.com>
diff --git a/setup.py b/setup.py
index c3c735d..86dacc4 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@
 from setuptools import setup
 
 _name = 'osm_policy_module'
-_version_command = ('git describe --match v* --tags --long --dirty', 'pep440-git')
+_version_command = ('git describe --match v* --tags --long --dirty', 'pep440-git-full')
 _author = "Benjamín Díaz"
 _author_email = 'bdiaz@whitestack.com'
 _description = 'OSM Policy Module'