[rear-devel] [rear/rear] bdb70d: Update _input-output-functions.sh

[Johannes Meixner]

  Branch: refs/heads/jsmeix-fix-issue-2667
  Home:   https://github.com/rear/rear
  Commit: bdb70d6bd33b6965594be09f44404573f1305ef9
      https://github.com/rear/rear/commit/bdb70d6bd33b6965594be09f44404573f1305ef9
  Author: Johannes Meixner <jsmeix at suse.com>
  Date:   2021-09-03 (Fri, 03 Sep 2021)

  Changed paths:
    M usr/share/rear/lib/_input-output-functions.sh

  Log Message:
  -----------
  Update _input-output-functions.sh

Use double quotes to get the variable evaluated in
remove_temporary_mountpoint "$BUILD_DIR/outputfs"
to fix https://github.com/rear/rear/issues/2667