Unified diffs (the kind we use) are typically quite good at skirting around modifications. If you've modified the particular lines that are being patched, you'll get a rejection warning and you'll have to reconcile the changes yourself; if not, they'll generally be patched, even if the line numbers have changed somewhat.
I'd suggest trying the patch tool out on a copy of your installation; if you can use the patch tool to provide a base for some corrections, you'll save a lot of time.
Open Journal Systems Team
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