[tex-live] tl2011pre tlmgr update 22751 -> 22840 can fail to update --self

[Charles P. Schaum]

Bug: tl2011pre tlmgr update 22751 -> 22840 can fail to update --self

System: Ubuntu 11.04 32bit AMD Phenom II X4 955
Install: TL2011 pretest in /usr/local with equivs dummy package.

Running $ sudo tlmgr -gui (v.22751) brought up GUI.
Clicking button: Update all installed will load the default remote
mirror ftp.math.utah.edu/pub/texlive/tlpretest
The dialog announcing the update to texlive.infra 22840 pops up and
clicking it results in the message that texlive.infra was updated and
the program will end / need restart. It acts as if update --self had run
and succeeded.

The problem is that a repeat run of tlmgr in gui mode with Update all
installed can repeat the above sequence indefinitely, indicating that
update --self had not occurred or terminated properly.

Solution: run in command line mode or run in gui mode, click Load
default button, click Updates check box, click the texlive.infra entry,
click Update. Restart tlmgr. The update has succeeded and allows the
remaining packages to be update.

Thanks for your work.

Charles