font/sfnt: rename ExampleRasterizeGlyph to Example_rasterizeGlyph

This change renames the example to follow correct naming convention,
as documented at https://godoc.org/testing#hdr-Examples. As a result,
it shows up in godoc.

This issue was caught and reported by vet:

	$ go vet golang.org/x/image/font/sfnt
	# golang.org/x/image/font/sfnt_test
	font/sfnt/example_test.go:19: ExampleRasterizeGlyph refers to unknown identifier: RasterizeGlyph

Fixes golang/go#28684

Change-Id: I2749c638c5f3ed15e4db0448bc7a5e2c12c056e5
Reviewed-on: https://go-review.googlesource.com/c/148576
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
1 file changed
tree: e3e8665029ed0facb81055c81bfe9e4a8c72b94c
  1. .gitattributes
  2. .gitignore
  3. AUTHORS
  4. CONTRIBUTING.md
  5. CONTRIBUTORS
  6. LICENSE
  7. PATENTS
  8. README.md
  9. bmp/
  10. cmd/
  11. codereview.cfg
  12. colornames/
  13. draw/
  14. example/
  15. font/
  16. math/
  17. riff/
  18. testdata/
  19. tiff/
  20. vector/
  21. vp8/
  22. vp8l/
  23. webp/
README.md

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