More fletcher32 problems


I'm having more 1.6/1.8 incompatibility problems with the Fletcher32
filter. This is different from the order-of-filters problem I
reported earlier. The attached file compiles and runs fine on both
1.6.9 and 1.8.3, but the file it produces cannot be read on the other
major version (1.6 to 1.8 and vice-versa). Reading fails with a
fletcher32 checksum error; h5dump has a generic "unable to print data"


fail.c (744 Bytes)