bug in UT_XML_strncpy

[Tomas Frydrych]

There is a bug in UT_XML_strncpy which causes it to copy only n-
1 characters. Line 332 of ut_string.cpp should be changed to

        while (i < nLen)

There is only one call of this function in the entire tree that needs 
to be subsequently adjusted, on line 478 of 
ap_Dialog_Paragraph.cpp (all other calls can/should stay as they 
are).

Could some please fix it?

Tomas