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The GIT file was removed from the tree because I have stopped
using TopGit.  Because of this is must also be removed from
the top level Makefile.am as will as the zfs.spec.in file
which referenced it.

Fix type in lib/libzpool/Makefile.am which was preventing
the needed zrlock.h header from being included by 'make dist'.
I simply had the name wrong in the Makefile.am.

Regenerated autogen.sh build products.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>