const mime/quotedprintable.upperhex

3 uses

	mime/quotedprintable (current package)
		writer.go#L120: 	w.line[w.i+1] = upperhex[b>>4]
		writer.go#L121: 	w.line[w.i+2] = upperhex[b&0x0f]
		writer.go#L127: const upperhex = "0123456789ABCDEF"