add prepare_manpage

devscripts/prepare_manpage.py

@@ -0,0 +1,20 @@
+
+import io
+import os.path
+import sys
+import re
+
+ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+README_FILE = os.path.join(ROOT_DIR, 'README.md')
+
+with io.open(README_FILE, encoding='utf-8') as f:
+    readme = f.read()
+
+PREFIX = '%YOUTUBE-DL(1)\n\n# NAME\n'
+readme = re.sub(r'(?s)# INSTALLATION.*?(?=# DESCRIPTION)', '', readme)
+readme = PREFIX + readme
+
+if sys.version_info < (3, 0):
+    print(readme.encode('utf-8'))
+else:
+    print(readme)