[1.5] remove one obvious memory leak from test functions

CHANGES

@@ -5,6 +5,9 @@ What's New for OpenJPEG
 ! : changed
 + : added
 
+October 21, 2011
+* [mickael] remove one obvious memory leak from test functions
+
 October 20, 2011
 * [mickael] remove obvious memory leak from applications
 

tests/comparePGXimages.c

@@ -596,6 +596,7 @@ int main(int argc, char **argv)
     }
   else
     {
+	if (imageBase) opj_image_destroy(imageBase);
     if (inParam.tabMSEvalues) free(inParam.tabMSEvalues);
     if (inParam.tabPEAKvalues) free(inParam.tabPEAKvalues);
     if (inParam.base_filename) free(inParam.base_filename);