add comment about C API. somehow managed not to Put this before.
add comment about C API.
somehow managed not to Put this before.

R=r
DELTA=3  (3 added, 0 deleted, 0 changed)
OCL=35289
CL=35294

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