godoc: document -templates flag

Fixes #2441.

R=r
CC=golang-dev
https://golang.org/cl/5376078

diff --git a/src/cmd/godoc/doc.go b/src/cmd/godoc/doc.go
index 60c678e130eba142204c8f6c2e3ba4b450bca14e..53104152d9a26acd7bd78a3441d4d1f69b4bcdbc 100644 (file)
--- a/src/cmd/godoc/doc.go
+++ b/src/cmd/godoc/doc.go
@@ -80,6 +80,10 @@ The flags are:
                repository holding the source files.
        -sync_minutes=0
                sync interval in minutes; sync is disabled if <= 0
+       -templates=""
+               directory containing alternate template files; if set,
+               the directory may provide alternative template files
+               for the files in $GOROOT/lib/godoc
        -filter=""
                filter file containing permitted package directory paths
        -filter_minutes=0