send-email: sanitize_address use qq["foo"], not "\"foo\""

Perl provides an alternate quote syntax which can make using "" inside
interpolated strings easier to read.

Signed-off-by: Ævar Arnfjörð Bjarmason <[email protected]: Avery Pennarun <[email protected]>
Reviewed-by: Jeff King <[email protected]>
>
Signed-off-by: Junio C Hamano <[email protected]>

Author: avar

git-send-email.perl

@@ -881,7 +881,7 @@ sub sanitize_address {
 	# double quotes are needed if specials or CTLs are included
 	elsif ($recipient_name =~ /[][()<>@,;:\\".\000-\037\177]/) {
 		$recipient_name =~ s/(["\\\r])/\\$1/g;
-		$recipient_name = "\"$recipient_name\"";
+		$recipient_name = qq["$recipient_name"];
 	}
 
 	return "$recipient_name $recipient_addr";