Globally replace _T() with wxT().

Standardize on using a single macro across all wxWidgets sources and solve the name clash with Sun CC standard headers (see #10660).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61508 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/colourcmn.cpp

@@ -173,7 +173,7 @@ wxString wxToString(const wxColourBase& col)
 
 bool wxFromString(const wxString& str, wxColourBase *col)
 {
-    wxCHECK_MSG( col, false, _T("NULL output parameter") );
+    wxCHECK_MSG( col, false, wxT("NULL output parameter") );
 
     if ( str.empty() )
     {