[svn-r16392] Description:

Bring r16367:16391 back from trunk into revise_chunks branch.

Tested on:
	FreeBSD 6.3/32 (duty)
	(h5committest not required on this branch)

tools/lib/h5diff_array.c

@@ -5397,7 +5397,6 @@ my_isnan(dtype_t type, void *val)
         double x;
         HDmemcpy(&x, val, sizeof(double));
         retval = (x!=x);
-        //printf("x=%g retval =%d\n", x,retval);
 
 #if H5_SIZEOF_LONG_DOUBLE!=H5_SIZEOF_DOUBLE && H5_SIZEOF_LONG_DOUBLE!=0
     }