Gui: prevent crashes on MacOS using boost::format

[0penBrain]

This PR is an attempt to solve crashes on MacOS described here :
https://forum.freecad.org/viewtopic.php?t=75442
https://forum.freecad.org/viewtopic.php?t=77234

[freecadci]

for feature branch PR_9126. Pipeline 823352134 was triggered at 40e266d. All CI branches and pipelines.

[0penBrain]

@wwmayer do you see any risk at merging this PR ? I just replaced all %i with %d which at worst shouldn't change anything.

[wwmayer]

According to https://www.boost.org/doc/libs/1_66_0/libs/format/doc/format.html#printf_directives using %i should be valid. But since %d is also valid it's worth a try.

[0penBrain]

Yes %i is valid as is %d. But while both converts to decimal numbers, there are cases where 'such as in scanf where they are not equivalent.
Hence my present try. :)
I'm gonna merge and we'll see. If it's not enough, I may try change all %d to %.1d.

[wwmayer]

Yes %i is valid as is %d. But while both converts to decimal numbers, there are cases where 'such as in scanf where they are not equivalent.

Sooner or later we should move from boost::format to libfmt because for fmt::sprintf this library does some proper run-time checks whether the passed arguments match with the format specifiers. (From what I have read it can even do some compile-time checks with C++20.)

When using fmt::format (what I prefer) then for each argument {} can be used which will simplify things a lot. The compiler will find the right type automatically, then.