HOWTO UPDATE MAKESELF

#If makEself version with your required bug fix is 2.3.1
# cd to otb/sources/Packaging/

wget https://github.com/megastep/makeself/archive/release-2.3.1.tar.gz
tar xzf release-2.3.1.tar.gz
mv makeself-release-2.3.1 makeself
rm -fr release-2.3.1.tar.gz

run git diff to check if everything is in place and git commit 
