invoke.texi ([-fisolate-erroneous-paths-dereference]): Copy-edit description.

2015-01-03  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* doc/invoke.texi ([-fisolate-erroneous-paths-dereference]):
	Copy-edit description.
	([-fisolate-erroneous-paths-attribute]): Likewise.
	* common.opt (fisolate-erroneous-paths-dereference):
	Copy-edit description.
	(fisolate-erroneous-paths-attribute): Likewise.

From-SVN: r219170