send-email: consider quote as delimiter instead of character

Do not consider quote inside a recipient name as character when
they are not escaped. This interprets:

  "Jane" "Doe" <jdoe@example.com>

as:

  "Jane Doe" <jdoe@example.com>

instead of:

  "Jane\" \"Doe" <jdoe@example.com>

Signed-off-by: Remi Lespinet <remi.lespinet@ensimag.grenoble-inp.fr>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-send-email.perl

@@ -1003,15 +1003,17 @@ sub sanitize_address {
 		return $recipient;
 	}
 
+	# remove non-escaped quotes
+	$recipient_name =~ s/(^|[^\\])"/$1/g;
+
 	# rfc2047 is needed if a non-ascii char is included
 	if ($recipient_name =~ /[^[:ascii:]]/) {
-		$recipient_name =~ s/^"(.*)"$/$1/;
 		$recipient_name = quote_rfc2047($recipient_name);
 	}
 
 	# double quotes are needed if specials or CTLs are included
 	elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
-		$recipient_name =~ s/(["\\\r])/\\$1/g;
+		$recipient_name =~ s/([\\\r])/\\$1/g;
 		$recipient_name = qq["$recipient_name"];
 	}