[committed] Fix bootstrap failure after recent ivopts change

Jovan's last patch that I committed on his behalf has an obvious goof that
showed up during a bootstrap.  Essentially a stray semi-colon created an unused
value diagnostic.

It was also apparent that the formatting was goofy, so I fixed that while I was
in there.  Hopefully all that's happened here is that Jovan sent the wrong
patch and he actually tested a patch without the stray semi-colon.

I bootstrapped, but did not run this through regression testing on x86_64.

Pushing to the trunk.

gcc
	* tree-ssa-loop-ivopts.cc (ivopts_estimate_reg_pressure): Remove
	stray semi-colon and fix formatting.