Fixing documentation to reference JUMP_ rather than _JUMP.
Fixing documentation to reference JUMP_ rather than _JUMP.

R=csilvers
DELTA=1  (0 added, 0 deleted, 1 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=3897

LeslieW/sparsehash,LeslieW/sparsehash,LeslieW/sparsehash