Hex float default alignment

[vasama]

From the documentation (emphasis mine):

Option	Meaning
'<'	Forces the field to be left-aligned within the available space (this is the default for most objects).
'>'	Forces the field to be right-aligned within the available space (this is the default for numbers).
'^'	Forces the field to be centered within the available space.

fmt::print("'{:16f}'\n", 4.2f); // output: '        4.200000'
fmt::print("'{:16a}'\n", 4.2f); // output: '0x1.0cccccp+2   '

https://godbolt.org/z/Mf4nzdncs