Remove extra quote character in docstring.
Remove extra quote character in docstring.

Remove extra quote character in docstring that was messing up
syntax highlighting.

BUG=None
TEST=None

Change-Id: I3e58d14f197344351bcd3ba4a1b95b3fd1100035
Reviewed-on: http://gerrit.chromium.org/gerrit/6675
Reviewed-by: Ryan Cui <5ce1592d53754a87a44fc2eb7b63d5f77cf50fdb@chromium.org>
Tested-by: Matt Tennant <46e612415b446ccde19638e4035892001c237942@chromium.org>

bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite,zhang0137/chromite,zhang0137/chromite,zhang0137/chromite,coreos/chromite,bpsinc-native/src_third_party_chromite,coreos/chromite,bpsinc-native/src_third_party_chromite,coreos/chromite,chadversary/chromiumos.chromite