[Bug 16684] cnsconf.exe fails to start

http://bugs.winehq.org/show_bug.cgi?id=16684

Hans Leidekker  changed:

What    |Removed                     |Added
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--- Comment #10 from Hans Leidekker   2009-09-02 06:46:15 ---
+      if(lpszSrc)
+        lstrcpynW(lpszStr, lpszSrc, iLen);
+      else
+        *lpszStr = '\0';
+    }

It would be cleaner to copy the relevant part of lstrcpynW and
make it deal with a NULL src buffer.