os: fix documentation for FileInfo.Name. It's the base name, not the full name. Fixes issue 2047.
os: fix documentation for FileInfo.Name.
It's the base name, not the full name.
Fixes issue 2047.

R=golang-dev, dsymonds
CC=golang-dev
http://codereview.appspot.com/4680041

ssrl/go,dsriram/golang,pombredanne/go-deleteme,gnanderson/go,apparentlymart/golang,tv42/old-go,gnanderson/go,dsriram/golang,ssrl/go,tv42/old-go,ssrl/go,pombredanne/go-deleteme,pombredanne/go-deleteme,ssrl/go,dsriram/golang,tv42/old-go,ssrl/go,pombredanne/go-deleteme,dsriram/golang,gnanderson/go,pombredanne/go-deleteme,apparentlymart/golang,apparentlymart/golang,apparentlymart/golang,apparentlymart/golang,tv42/old-go,ssrl/go,apparentlymart/golang,gnanderson/go,pombredanne/go-deleteme,apparentlymart/golang,tv42/old-go,dsriram/golang,ssrl/go,dsriram/golang,dsriram/golang,gnanderson/go,pombredanne/go-deleteme,tv42/old-go,gnanderson/go,tv42/old-go,gnanderson/go