[PATCH] testbot: Document the dependency on Procmail.

[Francois Gouget]

It may be possible to do without it but it is used in the installation
instructions.

Signed-off-by: Francois Gouget 
---
 testbot/doc/INSTALL.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/testbot/doc/INSTALL.txt b/testbot/doc/INSTALL.txt
index cb7c31b97..bae1e8254 100644
--- a/testbot/doc/INSTALL.txt
+++ b/testbot/doc/INSTALL.txt
@@ -5,7 +5,7 @@ Dependencies:
 - Apache2 with mod_perl
 - MySQL
 - Perl DBD and DBI::mysql modules
-- Sendmail
+- Sendmail and Procmail
 - Sys::Virt (libsys-virt-perl, see http://libvirt.org/)
 - Image::Magick (perlmagick)
 - Optional: IO::Socket::IP (for IPv6, libio-socket-ip-perl)