[Predef-contribute] Solaris Version Macros

[Georg S. <ma...@ge...>]

Hi,

just 2 small things regardings the
https://sourceforge.net/p/predef/wiki/OperatingSystems/ page:

- s/Sun Studio/Solaris Studio/
- perhaps you can explicitly state that those version macros aren't
  defined by GCC

Best regards
Georg