[apparmor] [patch] Fix user-download abstraction for non-latin file names

[Vincas Dargis]

Hello,

I have noticed that abstractions/user-download profile allows to download into home directory, while protecting dot files:

owner @{HOME}/[a-zA-Z0-9]*           rwl,

Though it fails for files with non-latin symbols, tested with /usr/bin/tee copied to /usr/local/bin/testtee with minimal 
profile using user-download abstraction:

echo "foo" | testtee ~/ąčęėįšųūž
testtee: /home/vincas/ąčęėįšųūž: Permission denied

When file rule is changed into:

owner @{HOME}/[^.]*		     rwl,

It works as expected:

$ echo "foo" | testtee ~/ąčęėįšųūž
foo

$ echo "foo" | testtee ~/.bashrc
testtee: /home/vincas/.bashrc: Permission denied
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