to avoid producing dups, e.g. 2012-2012
Backpatch to 9.2.
# We only care about lines with a copyright notice.
next unless $line =~ m/$cc.*$pgdg/;
+ # Skip line if already matches the current year; if not
+ # we get $year-$year, e.g. 2012-2012
+ next if $line =~ m/$cc$year, $pgdg/;
+
# We process all lines because some files have copyright
# strings embedded in them, e.g. src/bin/psql/help.c
$line =~ s/($cc\d{4})(, $pgdg)/$1-$year$2/;