pgsql: pageinspect: Fix unaligned struct access in GIN functions

pageinspect: Fix unaligned struct access in GIN functions

The raw page data that is passed into the functions will not be aligned
at 8-byte boundaries. Casting that to a struct and accessing int64
fields will result in unaligned access. On most platforms, you get away
with it, but it will result on a crash on pickier platforms such as ia64
and sparc64.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/84ad68d645222f534e4fe51fbba43a5c9cc382a5

Modified Files
--------------
contrib/pageinspect/ginfuncs.c | 46 ++++++++++++++++++++++--------------------
1 file changed, 24 insertions(+), 22 deletions(-)

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