[c++] @return tag is added for functions returning void

[bartlibert]

Describe the bug
In c++ (and C), functions can have a "void" return type, meaning they don't return anything.
This plugin adds a return tag in the doxygen comments for this kind of functions though.

To Reproduce
Create a c++ file, for example foo.h containing:
void foo();

Put your cursor on the function and press "Ctrl-D"

The following comment is generated:

/**
 * TODO
 *
 * @return TODO
 */

Expected behavior
The "return" tag should be omitted in this case:

/**
 * TODO
 */

[kkoomen]

Thank you for submitting this issue. This issue has been fixed and merged into master in v1.2.3.