Running `ps` via luci.exec directly will cause no output to compare as `ps` cannot detect the size of screen, adding `-w` to solve this. Fixes: 0e285c3037c3481d0c1b7a7c672a6ca5692ef35f ("add lean's package")
This reverts commit 510d2c3e466e953eba52c1a7c4e1d423ee10e21f.