ilab-wrapper: Improve non-single subuid ranges error handling #730
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Background
df88857
Issue
The current error handling for multiple subuid ranges is broken due to surprising behavior of
wc -l
which always returns1
even when the input is empty.Solution
More carefully count the number of lines in the
CURRENT_USER_SUBUID_RANGE
variableAdditional changes
omertuc@50fb00f had a small merge error, this commit fixes that.