Fix use of log.warn.  Fixes #15642

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/trunk@77969 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Apply patch to eliminate use of string exceptions.  Closes #15484

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/trunk@77970 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix = --> == typo.  Closes #15490

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/trunk@77971 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Correct FSF address. Closes #15502

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/trunk@77972 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775