[PATCH 3/4] content_hash: normalize whitespace before hashing addresses

[Eric Wong]

This should prevent some false duplicates.  I noticed this
while implementing "lei mail-diff", and only noticed it when
I implemented the ContentDigestDbg wrapper for mail-diff.
---
 lib/PublicInbox/ContentHash.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/PublicInbox/ContentHash.pm b/lib/PublicInbox/ContentHash.pm
index f6ae9011c1bf..bacc9cdda124 100644
--- a/lib/PublicInbox/ContentHash.pm
+++ b/lib/PublicInbox/ContentHash.pm
@@ -20,6 +20,7 @@ use Digest::SHA;
 sub digest_addr ($$$) {
        my ($dig, $h, $v) = @_;
        $v =~ tr/"//d;
+       $v =~ tr/\r\n\t / /s;
        $v =~ s/@([a-z0-9\_\.\-\(\)]*([A-Z])\S*)/'@'.lc($1)/ge;
        utf8::encode($v);
        $dig->add("$h\0$v\0");
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