Fix release check for multiple versions of git

Author: feffe

setup.py

@@ -50,7 +50,7 @@ def finalize_options(self):
 
     def run(self):
         from subprocess import check_output
-        tag = check_output(['git', 'describe', '--all', '--exact-match', 'HEAD']).strip()
+        tag = check_output(['git', 'describe', 'HEAD']).strip()
         version = read_version()
         if tag != version:
             print('Missing %s tag on release' % version)