eximconf.erb: fix typo ("usefull" -> "useful")

Signed-off-by: Adam D. Barratt <adam@adam-barratt.org.uk>

diff --git a/modules/exim/templates/eximconf.erb b/modules/exim/templates/eximconf.erb
index 2ec73b9..c652add 100644 (file)
--- a/modules/exim/templates/eximconf.erb
+++ b/modules/exim/templates/eximconf.erb
@@ -50,7 +50,7 @@
 
 # Further details can be found in each of the files.
 
-# Usefull exim commands:
+# Useful exim commands:
 #  exim4 -qf  - Try sending all messages right now, including frozen ones
 #  exim4 -bt foo@blah - Write what exim would do if it saw the address
 #                      Great for testing virtual domains and forward files