Reported by parfait 1.0:

Error: Memory leak (CWE 401)
   Memory leak of pointer 'prop' allocated with RRCreateProviderProperty(property)
        at line 221 of randr/rrproviderproperty.c in function 'RRChangeProviderProperty'.
          'prop' allocated at line 155 with RRCreateProviderProperty(property).
          prop leaks when pending != 0 at line 161.

Error: Memory leak (CWE 401)
   Memory leak of pointer 'prop' allocated with RRCreateProviderProperty(property)
        at line 345 of randr/rrproviderproperty.c in function 'RRConfigureProviderProperty'.
          'prop' allocated at line 333 with RRCreateProviderProperty(property).
        at line 349 of randr/rrproviderproperty.c in function 'RRConfigureProviderProperty'.
          'prop' allocated at line 333 with RRCreateProviderProperty(property).

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