user-manual: remote-tracking can be checked out, with detached HEAD

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 8d7e4c5e49f41c7d864a3399f40deda722c1aa2d..253f41adc9e64105bf9d1642102b20bba6bc5f20 100755 (executable)
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -7,6 +7,7 @@
 #
 # This program is licensed under the GPLv2
 
+use 5.008;
 use strict;
 use warnings;
 use CGI qw(:standard :escapeHTML -nosticky);