warning: ISO C99 requires at least one argument for the "..." in a variadic macro

[nradulovic]

GCC will generate the above warning in the following case.

To Reproduce

1. Define a fake function with return value and no arguments: FAKE_VALUE_FUNC(int, some_function)
2. Compile the test with GCC with the following flags: -std=c11 -Wall -Wextra -pedantic

Expected behavior
Compilation without warnings

Compiler, toolset, platform (please complete the following information):

• toolchain: arm-none-eabi-gcc 10.2.1 20201103
• OS: Windows 10

[nradulovic]

See PR #95 for the same issue.