This adds copyright/license notification blocks CMake's find-modules.
Many of the modules had no notices at all. Some had notices referring
to the BSD license already. This commit normalizes existing notices and
adds missing notices.
- Split log out from Subversion_WC_INFO into Subversion_WC_LOG
- Fix report of log info to be in <var-prefix>_WC_LAST_CHANGED_LOG
as documented (instead of Subversion_LAST_CHANGED_LOG)
- Fix setting of LC_ALL environment variable to be inside macro
- Patch from Tanguy Krotoff
- See issue #7047