MacOSX fixes

Engine/source/gfx/bitmap/gBitmap.cpp

@@ -1211,7 +1211,7 @@ bool  GBitmap::writeBitmap( const String &bmType, const Torque::Path& path, U32
    FileStream stream;
    if (!stream.open(path, Torque::FS::File::Write))
    {
-      Con::errorf("GBitmap::writeBitmap failed to open path %s", path);
+      Con::errorf("GBitmap::writeBitmap failed to open path %s", path.getFullFileName().c_str());
       stream.close();
       return false;
    }

Engine/source/ts/tsLastDetail.cpp

@@ -504,11 +504,10 @@ void TSLastDetail::_update()
       String imposterPath = _getDiffuseMapPath();
       String normalsPath = _getNormalMapPath();
 
-      FileStream stream;
       if (!destBmp.writeBitmap("png", imposterPath))
-         Con::errorf("TSLastDetail::_update() - failed to write imposter %s", imposterPath);
+         Con::errorf("TSLastDetail::_update() - failed to write imposter %s", imposterPath.c_str());
       if (!destNormal.writeBitmap("png", normalsPath))
-         Con::errorf("TSLastDetail::_update() - failed to write normal %s", normalsPath);
+         Con::errorf("TSLastDetail::_update() - failed to write normal %s", normalsPath.c_str());
    }
 
    // DEBUG: Some code to force usage of a test image.