flags: fix erroneous mention of Parse in comment for Register
flags: fix erroneous mention of Parse in comment for Register

Cut-and-paste lacking cleanup; missed in the previous review.

Change-Id: I1808c62924ecbe430519640abd1fcf30c77ff81e
Reviewed-on: https://upspin-review.googlesource.com/8203
Reviewed-by: Eduardo Pinheiro <c9d6fd76b920b269b838bbb70f683c6db503d8d1@gmail.com>
Reviewed-by: David Presotto <d244755566b06d4c956c05eb7fe29c9fb345f41e@gmail.com>

upspin/upspin,upspin/upspin