sort.Search: slightly more precise wording in comment
sort.Search: slightly more precise wording in comment

(+ some cosmetic changes)

R=iant, iant2
CC=golang-dev
http://codereview.appspot.com/3076041

dsriram/golang,tv42/old-go,apparentlymart/golang,dsriram/golang,gnanderson/go,gnanderson/go,apparentlymart/golang,gnanderson/go,gnanderson/go,h8liu/golang,pombredanne/go-deleteme,apparentlymart/golang,tv42/old-go,pombredanne/go-deleteme,tv42/old-go,ssrl/go,h8liu/golang,ssrl/go,apparentlymart/golang,h8liu/golang,gnanderson/go,apparentlymart/golang,dsriram/golang,pombredanne/go-deleteme,gnanderson/go,h8liu/golang,ssrl/go,pombredanne/go-deleteme,h8liu/golang,tv42/old-go,dsriram/golang,dsriram/golang,ssrl/go,pombredanne/go-deleteme,ssrl/go,tv42/old-go,tv42/old-go,dsriram/golang,ssrl/go,apparentlymart/golang,apparentlymart/golang,h8liu/golang,h8liu/golang,dsriram/golang,pombredanne/go-deleteme,ssrl/go,gnanderson/go,pombredanne/go-deleteme,tv42/old-go