[Bugfix] hexo help list command causes OutOfMemory

[naokiy]

$ hexo help list

Above command causes OutOfMemory.

Cause

At hexo v3.0.1, printList(title, list) (

hexo/lib/plugins/console/help.js

Line 59 in e8e45ed

function printList(title, list){

) has a problem.
If list have only one element, variable length becomes zero (because of the list is not sorted).

Then while (padding--){ ... } causes infinite loop.

Solution

I separate setting length from sorting.

[coveralls]

Coverage increased (+0.52%) to 95.35% when pulling a83291a on naokiy:fix_help into b460830 on hexojs:master.

[coveralls]

Coverage increased (+0.52%) to 95.35% when pulling 9cab139 on naokiy:fix_help into b460830 on hexojs:master.

[coveralls]

Coverage increased (+0.62%) to 95.44% when pulling 1c0ae1e on naokiy:fix_help into b460830 on hexojs:master.

[coveralls]

Coverage increased (+0.62%) to 95.44% when pulling 1c0ae1e on naokiy:fix_help into b460830 on hexojs:master.