Re-apply changes to allow sources.csv to specify a revision by a *local* tag in the web repository.
Uses "hg id" instead of "hg in", so not affected by the aborts we had previously. And no need for an empty repo this time either.
#!perl -w
use strict;
# Sorts the input, removes duplicates, and outputs it
# Read it
my @content = <>;
# Sort it, and grep to remove duplicates
my $previous = "\n\n";
@content = grep {$_ ne $previous && ($previous = $_, 1) } sort @content;
# Write it
print @content;