dd: show warning when using 0x size multiplier #3085
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Show a warning when a block size includes "0x" since this is ambiguous: the user may have meant "multiply the next number by zero" or they may have meant "the following characters should be interpreted as a hexadecimal number".
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Show a warning when a block size includes "0x" since this is
ambiguous: the user may have meant "multiply the next number by zero"
or they may have meant "the following characters should be interpreted
as a hexadecimal number".
This fixes a test case in the GNU test suite file
tests/dd/misc.sh.