Tests: increase timeout for putting big chunk in dav_chunked.t.

dav_chunked.t

diff --git a/dav_chunked.t b/dav_chunked.t
index 0ab3fd2..1c8b4ac 100644
--- a/dav_chunked.t
+++ b/dav_chunked.t
@@ -90,7 +90,7 @@
 
 my $body = ('a' . CRLF . '1234567890' . CRLF) x 1024 . '0' . CRLF . CRLF;
 
-$r = http(<<EOF);
+$r = http(<<EOF, timeout => 5);
 PUT /file HTTP/1.1
 Host: localhost
 Connection: close

lib/Test/Nginx.pm

diff --git a/lib/Test/Nginx.pm b/lib/Test/Nginx.pm
index 305ff3c..c584b10 100644
--- a/lib/Test/Nginx.pm
+++ b/lib/Test/Nginx.pm
@@ -405,7 +405,7 @@
 	eval {
 		local $SIG{ALRM} = sub { die "timeout\n" };
 		local $SIG{PIPE} = sub { die "sigpipe\n" };
-		alarm(2);
+		alarm($extra{timeout} || 2);
 		my $s = $extra{socket} || IO::Socket::INET->new(
 			Proto => 'tcp',
 			PeerAddr => '127.0.0.1:8080'