@miguelps Thanks for the contribution, please restore empty lines in the script.

I at least would love to see such call examples

python2 ../platforms/android/build_sdk.py
--modules_list core,imgcodecs,improc
~/projects/opencv/build
~/projects/opencv

in this file https://github.com/opencv/opencv/blob/master/platforms/android/README.android

Hi Alexander
Empty lines restored.
But
https://github.com/opencv/opencv/blob/master/platforms/android/README.android
refers to an HTML page (it is only a link).
How can I suggest updates to HTML page(s)?

README.android is not a good place right now. Also there is no easy process for contributing updates to HTML pages on opencv.org.

Please remove unused files (.sh) and squash commits into one (before rebasing, see below).

This patch should go into 3.4 branch first. We will merge changes from 3.4 into master regularly (weekly/bi-weekly).

So, please:

• change "base" branch of this PR: master => 3.4 (use "Edit" button near PR title)
• rebase your commits from master onto 3.4 branch. For example:
  git rebase -i --onto upstream/3.4 upstream/master
  (check list of your commits, save and quit (Esc + "wq" + Enter)
  where upstream is configured by following this GitHub guide and fetched (git fetch upstream).
• push rebased commits into source branch of your fork (with --force option)

Note: no needs to re-open PR, apply changes "inplace".

ok, done!