fix a little typo

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5641 65c4cc65-6c06-0410-ace0-fbb531ad65f3

pbx/pbx_config.c

@@ -83,7 +83,7 @@ static char context_add_extension_help[] =
 
 static char context_add_ignorepat_help[] =
 "Usage: add ignorepat <pattern> into <context>\n"
-"       This command add new ignore pattern into context <context>\n"
+"       This command adds a new ignore pattern into context <context>\n"
 "\n"
 "Example: add ignorepat _3XX into local\n";