pacman-helper quick_*: avoid asking for confirmation to delete Git objs (#684)

When removing the temporary Git repository at the end of a successful
run, we do not want the user to say "y" to each and every Git object or
pack removal...

I hit this recently when I had to clean up my own mess after letting my
GPG key (with which the Pacman database is signed) expire...

Author: dscho

pacman-helper.sh

@@ -630,6 +630,7 @@ quick_action () { # <action> <file>...
 	fi
 
 	# Remove the temporary directory
+	chmod -R +w "$dir/.git/objects" &&
 	rm -r "$dir" ||
 	die "Could not remove $dir/"
 }