math: Change veryclose to close for Sinh and Exp tests.
math: Change veryclose to close for Sinh and Exp tests.

Fixes issue 550.

R=rsc
CC=eds, golang-dev, jtomaschke
http://codereview.appspot.com/196063

Committer: Russ Cox <5ad239cb8a44f659eaaee0aa1ea5b94947abe557@golang.org>

nightlyone/golang,apparentlymart/golang,tianon/debian-golang,dsriram/golang,apparentlymart/golang,ssrl/go,pombredanne/go-deleteme,h8liu/golang,tianon/debian-golang,dsriram/golang,h8liu/golang,tv42/old-go,dsriram/golang,bdwalton/debian-golang,pombredanne/go-deleteme,apparentlymart/golang,h8liu/golang,gnanderson/go,h8liu/golang,ssrl/go,apparentlymart/golang,tianon/debian-golang,bdwalton/debian-golang,nightlyone/golang,bdwalton/debian-golang,tianon/debian-golang,gnanderson/go,tianon/debian-golang,apparentlymart/golang,gnanderson/go,gnanderson/go,tv42/old-go,pombredanne/go-deleteme,bdwalton/debian-golang,tianon/debian-golang,dsriram/golang,h8liu/golang,ssrl/go,tianon/debian-golang,h8liu/golang,tianon/debian-golang,pombredanne/go-deleteme,tv42/old-go,ssrl/go,dsriram/golang,h8liu/golang,apparentlymart/golang,tv42/old-go,gnanderson/go,gnanderson/go,bdwalton/debian-golang,bdwalton/debian-golang,gnanderson/go,ssrl/go,pombredanne/go-deleteme,dsriram/golang,pombredanne/go-deleteme,nightlyone/golang,nightlyone/golang,ssrl/go,tv42/old-go,bdwalton/debian-golang,tv42/old-go,tv42/old-go,nightlyone/golang,nightlyone/golang,pombredanne/go-deleteme,ssrl/go,dsriram/golang,nightlyone/golang,bdwalton/debian-golang,apparentlymart/golang