orafce - orafce: replace ora_clone_text with datumCopy

Log Message:
-----------
replace ora_clone_text with datumCopy

Modified Files:
--------------
orafce:
orafunc.h (r1.10 -> r1.11)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/orafunc.h.diff?r1=1.10&r2=1.11)
plvstr.c (r1.11 -> r1.12)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/plvstr.c.diff?r1=1.11&r2=1.12)
plvsubst.c (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/plvsubst.c.diff?r1=1.4&r2=1.5)