1Var_Set("${:U}", "cmdline-u", ...) name expands to empty string - ignored 2Var_Set("", "cmline-plain", ...) name expands to empty string - ignored 3Var_Set("", "default", ...) name expands to empty string - ignored 4Var_Set("", "assigned", ...) name expands to empty string - ignored 5Var_Set("", "appended", ...) name expands to empty string - ignored 6Var_Set("", "", ...) name expands to empty string - ignored 7Var_Set("", "subst", ...) name expands to empty string - ignored 8Var_Set("", "shell-output", ...) name expands to empty string - ignored 9Var_Set("${:U}", "assigned indirectly", ...) name expands to empty string - ignored 10Var_Set("", "assigned", ...) name expands to empty string - ignored 11out: fallback 12out: 1 2 3 13exit status 0 14