[PATCH V2] git-send-email.perl: Deduplicate "to:" and "cc:" entries with names

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If an email address in the "to:" list is in the style
"First Last <email@xxxxxxxxxx>", ie: not just a bare
address like "email@xxxxxxxxxx", and the same named
entry style exists in the "cc:" list, the current
logic will not remove the entry from the "cc:" list.

Add logic to better deduplicate the "cc:" list by also
matching the email address with angle brackets.

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
V2: Added quote escaping suggested by Andreas Schwab

 git-send-email.perl |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/git-send-email.perl b/git-send-email.perl
index f68ed5a..1ae5fbf 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -960,7 +960,7 @@ sub maildomain {
 sub send_message {
 	my @recipients = unique_email_list(@to);
 	@cc = (grep { my $cc = extract_valid_address($_);
-		      not grep { $cc eq $_ } @recipients
+		      not grep { $cc eq $_ || $_ =~ /<\Q${cc}\E>$/ } @recipients
 		    }
 	       map { sanitize_address($_) }
 	       @cc);




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