Reported by parfait 1.0:

Error: Memory leak (CWE 401)
   Memory leak of pointer 'prop' allocated with RRCreateOutputProperty(property)
        at line 220 of randr/rrproperty.c in function 'RRChangeOutputProperty'.
          'prop' allocated at line 154 with RRCreateOutputProperty(property).
          prop leaks when pending != 0 at line 160.
Error: Memory leak (CWE 401)
   Memory leak of pointer 'prop' allocated with RRCreateOutputProperty(property)
        at line 346 of randr/rrproperty.c in function 'RRConfigureOutputProperty'.
          'prop' allocated at line 334 with RRCreateOutputProperty(property).
        at line 350 of randr/rrproperty.c in function 'RRConfigureOutputProperty'.
          'prop' allocated at line 334 with RRCreateOutputProperty(property).

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>