set ANDROID_ROOT empty

install.sh

@@ -14,7 +14,7 @@
 
 # Not every platform has or needs sudo, gotta save them O(1)s...
 sudo_cmd=""
-((EUID)) && [[ -z "$ANDROID_ROOT" ]] && sudo_cmd="sudo"
+((EUID)) && [[ -z "${ANDROID_ROOT:-}" ]] && sudo_cmd="sudo"
 
 deps_flag="$1"
 set -e