Unequal handling of the "equal notation"

[EvgenKo423]

Environment: Windows 7 SP1. ByeDPI v0.13.1+ at least.
Reproduce Steps:
Examples use --auto=torst, so run proxy with ciadpi.exe -i 127.0.0.1 -A=t -T 1 -s 4.

Expected Result: It works.
Actual Result: invalid value: -A =t

I understand that the "equal notation" is a feature of long-style arguments, but it would be nice to have a universal syntax. Native Windows command line (linked with MSVCRT) always uses both and = as an argument separators (among others).
Also it's somewhat unclear whether the "equal notation" is supported for all long arguments or only for some specific.

[hufrea]

Just always use long options with =, you can't go wrong. This is the getopt syntax, I don't change it.

[EvgenKo423]

Fortunately, the error is not raised by getopt(), so the solution is quite simple: if (*optarg == '=') optarg++;.