code review 15280045: acme: scroll a directory window when navigating if:

acme: scroll a directory window when navigating if:
        - the cursor is on the last line
        - the navigation would put the cursor over the tag of the following text

[r, 2013-10-22 23:46:15]

Hello rsc (cc: smckean83@gmail.com),

I'd like you to review this change to
http://code.swtch.com/plan9port

[r, 2013-10-22 23:47:56]

*** Submitted as
https://code.google.com/p/plan9port/source/detail?r=c1c9359cfee8 ***

acme: scroll a directory window when navigating if:
        - the cursor is on the last line
        - the navigation would put the cursor over the tag of the following text

R=rsc
CC=smckean83
https://codereview.appspot.com/15280045

[rsc, 2013-10-23 03:38:24]

you checked in a change to plumb/basic too. probably unintended, but
probably worth keeping.

[r, 2013-10-23 04:52:44]

Sorry about that - keeps happening to me. After 5 aborts I stopped paying
close attention.

However, the other change is indeed worth keeping.

-rob