fixing vars

bin/sysmail

@@ -4,7 +4,7 @@ run_user=$(id -u)
 if [ "$run_user" -eq 0 ] || [ "$run_user" -eq 1000 ]; then
   if [ -f "$1" ]; then
     for u in $(members users); do
-      sed -e "s/username/${u}/g" "$1" | sendmail "$u"
+      sed -e "s/USERNAME/${u}/g" "$1" | sendmail "$u"
     done
   else
     printf "Filename of email required.\\n"

emails/2018-12-17.eml

@@ -1,6 +1,6 @@
 Subject: Expanding the universe
 
-Hi ~username,
+Hi ~USERNAME,
 
 Thanks for joining cosmic.voyage and making it such an awesome
 place right out of the gate. I've been thrilled waking up each day
@@ -42,7 +42,7 @@ keep that up and invite more!
 In case you joined in the beginning when things were a little more
 ad-hoc, here's our current process for becoming a new user:
 
-1. pick a user-name 
+1. pick a username 
 2. send me a ssh pubkey
 
 That's it! I'll add the user to the system using that pubkey. Once