ENH: upgrade makeself script
the current version is makeself has some issue on running linux particulary on Ubuntu 14.04. I suspect this is the issue on test passed (but actually failed) only on linux. Linux (passed with no output messages): https://dash.orfeo-toolbox.org/testDetails.php?test=59547315&build=287532 OSX (passed with proper messages): https://dash.orfeo-toolbox.org/testDetails.php?test=60023362&build=287444 lurking on makeself's bug tracker, it could be a umask issue https://github.com/megastep/makeself/issues/58 https://github.com/megastep/makeself/commit/842dedfe1a1477237c5132dc3615fcf50dddcc65 https://github.com/megastep/makeself/commit/e75285d90df44fb7bd80a4f727442e784f6e73c5 I am not sure if this is the exact problem and upgrade will fix issue for us. Because we are not able to reproduce this bug on same machine executed under same constraints. Only change is that one is running via crontab and other directly from terminal.
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