go.tools/cmd/godoc: set corpus.MaxResults in appinit.go

LGTM=bradfitz
R=bradfitz
CC=golang-codereviews
https://golang.org/cl/101220045

cmd/godoc/appinit.go

@@ -43,6 +43,7 @@ func init() {
 
 	corpus := godoc.NewCorpus(fs)
 	corpus.Verbose = false
+	corpus.MaxResults = 10000 // matches flag default in main.go
 	corpus.IndexEnabled = true
 	corpus.IndexFiles = indexFilenames
 	if err := corpus.Init(); err != nil {