[doc] Using hardcoded README.md again

Makefile

@@ -61,8 +61,7 @@ youtube-dl: youtube_dl/*.py youtube_dl/*/*.py
 	chmod a+x youtube-dl
 
 README.md: youtube_dl/*.py youtube_dl/*/*.py
-	COLUMNS=80 python youtube_dl/__main__.py --help | python devscripts/make_readme.py README.md > README.new.md
-	mv -f README.new.md README.md
+	COLUMNS=80 python youtube_dl/__main__.py --help | python devscripts/make_readme.py
 
 CONTRIBUTING.md: README.md
 	python devscripts/make_contributing.py README.md CONTRIBUTING.md
@@ -74,7 +73,7 @@ README.txt: README.md
 	pandoc -f markdown -t plain README.md -o README.txt
 
 youtube-dl.1: README.md
-	python devscripts/prepare_manpage.py README.md > youtube-dl.1.temp.md
+	python devscripts/prepare_manpage.py >youtube-dl.1.temp.md
 	pandoc -s -f markdown -t man youtube-dl.1.temp.md -o youtube-dl.1
 	rm -f youtube-dl.1.temp.md
 

devscripts/make_readme.py

@@ -4,7 +4,7 @@ import io
 import sys
 import re
 
-README_FILE = sys.argv[1]
+README_FILE = 'README.md'
 helptext = sys.stdin.read()
 
 if isinstance(helptext, bytes):
@@ -20,7 +20,7 @@ options = helptext[helptext.index('  General Options:') + 19:]
 options = re.sub(r'(?m)^  (\w.+)$', r'## \1', options)
 options = '# OPTIONS\n' + options + '\n'
 
-with io.open(sys.stdout.fileno(), 'w', encoding='utf-8') as f:
+with io.open(README_FILE, 'w', encoding='utf-8') as f:
     f.write(header)
     f.write(options)
     f.write(footer)

devscripts/prepare_manpage.py

@@ -6,7 +6,7 @@ import sys
 import re
 
 ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
-README_FILE = os.path.join(ROOT_DIR, sys.argv[1])
+README_FILE = os.path.join(ROOT_DIR, 'README.md')
 
 
 def filter_options(readme):