In /usr/bin/sensible-pager line 5:
[ -n "$PAGER" ] && [ "$(which $PAGER || true)" = "$p" ] && PAGER=
                              ^----^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
[ -n "$PAGER" ] && [ "$(which "$PAGER" || true)" = "$p" ] && PAGER=

For more information:
  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...