In the highly unlikely event that TransFileName was passed a path
containing multiple %L entries, for each entry it would call
_XlcFileName, leaking the previous results, and then for each entry it
would copy from that pointer and free it, resulting in invalid pointers
& possible double frees for each use after the first one freed it.

Error: Use after free (CWE 416)
   Use after free of pointer 'lcCompose'
        at line 358 of nx-X11/lib/X11/imLcPrs.c in function 'TransFileName'.
          Previously freed at line 360 with free.
Error: Use after free (CWE 416)
   Use after free of pointer 'lcCompose'
        at line 359 of nx-X11/lib/X11/imLcPrs.c in function 'TransFileName'.
          Previously freed at line 360 with free.
Error: Double free (CWE 415)
   Double free of pointer 'lcCompose'
        at line 360 of nx-X11/lib/X11/imLcPrs.c in function 'TransFileName'.
          Previously freed at line 360 with free.

[ This bug was found by the Parfait 0.3.6 bug checking tool.
  For more information see http://labs.oracle.com/projects/parfait/ ]
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
(cherry picked from commit 6ac417cea1136a3617f5e40f4b106aaa3f48d6c2)
Backported-to-NX-by: Ulrich Sibiller <uli42@gmx.de>