Var_Set("${:U}", "cmdline-u", ...) name expands to empty string - ignored
Var_Set("", "cmline-plain", ...) name expands to empty string - ignored
Var_Set("", "default", ...) name expands to empty string - ignored
Var_Set("", "assigned", ...) name expands to empty string - ignored
Var_Set("", "appended", ...) name expands to empty string - ignored
Var_Set("", "", ...) name expands to empty string - ignored
Var_Set("", "subst", ...) name expands to empty string - ignored
Var_Set("", "shell-output", ...) name expands to empty string - ignored
out: fallback
out: 1 2 3
exit status 0