#1625 r13960::cp2make

[LETARTARE]

This fix only applies to [-Wimplicit-fallthrough=] files 'stringhash.cpp' and 'tinyxmlparser.cpp'
Note : in 'tinyxmlparser.cpp' replacements also appear that I am not the author of ! , I guess those are end-of-line marks ?

I am not on the intentions of the author on the sequence of 'case', I used
/* fall through */
qui devrait être valable en C11++ et 17++

I attach the compilation file with the warnings and the fix

[LETARTARE]

An oversight of translation :
'qui devrait être valable en C11++ et 17++' => 'which should be valid in C11++ and 17++'