fix sudo_root for root

lib/functions.bash

@@ -1,7 +1,8 @@
 ## library of useful functions, usually prefixed with '_'
 
 function sudo_root {
-  [[ "$UID" -ne 0 ]] && sudo -vp 'SUDO privilege required: ' 2>/dev/null
+  [[ $UID == 0 ]] && return
+  sudo -vp 'SUDO privilege required: ' 2>/dev/null
 }
 
 ## ASSERT Functions

lib/self-upgrade.bash

@@ -19,7 +19,7 @@ function container_upgrade {
   fi
   echo ' (Ctrl-c to bypass)'
   if sudo_root; then
-    sudo -E miaou-bash "$MIAOU_BASH_DIR"/lib/initiate.bash
+    sudo -E "$MIAOU_BASH_DIR"/bin/miaou-bash "$MIAOU_BASH_DIR"/lib/initiate.bash
   else
     builtin exit 1
   fi
@@ -56,7 +56,7 @@ function system_upgrade {
   if [[ "$current" == "$latest" ]]; then
     echo "up-to-date version: $current (Ctrl-c to bypass reinitialization)"
     if sudo_root; then
-      sudo miaou-bash "$MIAOU_BASH_DIR"/lib/initiate.bash
+      sudo -E "$MIAOU_BASH_DIR"/bin/miaou-bash "$MIAOU_BASH_DIR"/lib/initiate.bash
     else
       builtin exit 1
     fi