Add patch as build dependency

Author: SylvainCorlay

recipe/meta.yaml

@@ -113,6 +113,7 @@ requirements:
     - make                               # [unix]
     - pkg-config                         # [unix]
     - llvm-tools                         # [osx]
+    - m2-patch                           # [win]
   host:
     - bzip2                              # [unix]
     - sqlite                             # [unix]
@@ -150,7 +151,7 @@ test:
 
 about:
   home: http://www.python.org/
-  license: Python-2.0
+  license: PSF
   license_file: LICENSE
   summary: General purpose programming language
   description: |