send-email tests: support GIT_TEST_PERL_FATAL_WARNINGS=true

Add support for the "GIT_TEST_PERL_FATAL_WARNINGS=true" test mode to "send-email". This was added to e.g. git-svn in 5338ed2b26 (perl: check for perl warnings while running tests, 2020-10-21), but not "send-email". Let's rectify that. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Ævar Arnfjörð Bjarmason committed May 28, 2021 at 11:23 UTC ecc4ee9cac60600f38542cebd940b4bd8b6497c8
1 file changed +1 -1
git-send-email.perl
+1 -1
@@ -18,7 +18,7 @@
18
19 use 5.008;
20 use strict;
21 -use warnings;
21 +use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : ();
22 use POSIX qw/strftime/;
23 use Term::ReadLine;
24 use Getopt::Long;