cmd/upspin-ui: fix typo
cmd/upspin-ui: fix typo

Change-Id: I7650a1c9b366acd9130ab9eba0508a182b136951
Reviewed-on: https://upspin-review.googlesource.com/15840
Reviewed-by: Andrew Gerrand <395a7d33bec8475c9b83b7d440f141bcbd994aa5@golang.org>

upspin/augie,upspin/augie,upspin/augie