I think I have found ('a' or 'the') bug:
---
validate_nice_value () {
_retval=1
# first, try to subtract number from itself to validate numeric input
# (expr is noisy, always throw away its output)
set +e
expr "$1" - "$1" > /dev/null 2>&1
if [ $? -ne 2 ]; then
# now check for valid range
---
but I get:
---
[EMAIL PROTECTED]:~$ expr "raton" "-" "raton"
expr: non-numeric argument
[EMAIL PROTECTED]:~$ echo $?
3
[EMAIL PROTECTED]:~$ expr "" "-" ""
expr: non-numeric argument
[EMAIL PROTECTED]:~$ echo $?
3
---
2 is a syntax error
3 if an error occured
here an error appears on empty or non-numeric value
Replacing:
if [ $? -ne 2 ]; then
by
if [ $? -ne 3 ]; then
would probably work.
--
x11-common is uninstallable when debconf method is kde
https://launchpad.net/bugs/68267
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