Log Message:
-----------
Reference variable name as a string, not an object, when invoking Tcl_UnsetVar2.
Modified Files:
--------------
libpgtcl/generic:
pgtclCmds.c (r1.86 -> r1.87)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgtcl/libpgtcl/generic/pgtclCmds.c?r1=1.86&r2=1.87)