[x/blog] content: fix double-underscore typo in defer-panic-recover article
[x/blog] content: fix double-underscore typo in defer-panic-recover article

The typo produces an underscore “[…]order after_the surrounding[…]” at
http://blog.golang.org/defer-panic-and-recover

Change-Id: I0ab9be9cbef772c3ebff684e7de96fc4c2c802c6
Reviewed-on: https://go-review.googlesource.com/16477
Reviewed-by: Minux Ma <72d850dbd8858b791995463d8539b5a379577f28@golang.org>
X-Blog-Commit: ae8412ecaca546a66b3a3d5f4844a898aa9605ec

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