Improve 'deny' tool: no need to save executable bits state.

deny

@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 def help
-	puts "Usage: permit <USERNAME> <DIR>"
+	puts "Usage: deny <USERNAME> <DIR>"
 	puts "Removes access for USERNAME to directory DIR."
 	exit 1
 end
@@ -17,11 +17,6 @@ help if ARGV.size != 2
 username, dir = ARGV
 puts "cd #{dir}"
 Dir.chdir(dir) do
-	executable_files = "/tmp/executable-files.#{$$}"
-	sh "find -type f -executable -print0 > #{executable_files}"
-	sh "find -print0 | xargs -0 -n 1000 -r setfacl -x user:#{username}"
+	sh "setfacl -R -x user:#{username} ."
 	sh "find -type d -print0 | xargs -0 -n 1000 -r setfacl -d -x user:#{username}"
-	sh "find -type f -print0 | xargs -0 -n 1000 -r chmod -x"
-	sh "cat #{executable_files} | xargs -0 -n 1000 -r chmod +x"
-	sh "rm -f #{executable_files}"
 end