Support short username in xterm title plugin

template/bash_profile.template.bash

@@ -31,6 +31,11 @@ export SCM_CHECK=true
 # Will otherwise fall back on $HOSTNAME.
 #export SHORT_HOSTNAME=$(hostname -s)
 
+# Set Xterm/screen/Tmux title with only a short username.
+# Uncomment this (or set SHORT_USER to something else),
+# Will otherwise fall back on $USER.
+#export SHORT_USER=${USER:0:8}
+
 # Set vcprompt executable path for scm advance info in prompt (demula theme)
 # https://github.com/djl/vcprompt
 #export VCPROMPT_EXECUTABLE=~/.vcprompt/bin/vcprompt