Add missing then

Author: sroze

ubuntu/16.04/usr/local/share/bootstrap/common_functions.sh

@@ -42,7 +42,7 @@ as_user() (
   local COMMAND="$1"
   local WORKING_DIR="$2"
 
-  if [ "true" = "$NON_PRIVILEGED_USER" ];
+  if [ "true" = "$NON_PRIVILEGED_USER" ]; then
     /bin/bash -c "cd '$WORKING_DIR'; $COMMAND"
     return "$?"
   fi