jekyll/jekyll — pull request #2883 by faustgertz (2014-09-09 05:02:15+00:00)
Title: Various Liquid string filters not working

Using jekyll 2.2.0 and liquid 2.6.1
```
{{ "hello" | slice: 2 }}
{{ "hello" | slice: 1, 3 }}
{{ "hello" | slice: -3, 2 }}
```
should yield:
```
e
ell
el
```
but instead yields:
```
hello
hello
hello
```
also
```
{{ ' too many spaces ' | strip }}
{{ ' too many spaces ' | lstrip }}
{{ ' too many spaces ' | rstrip }}
```
should yield:
```
too many spaces
too many spaces
too many spaces
```
but instead yields:
```
too many spaces
too many spaces
too many spaces
```
Same with jekyll 2.3.0.

Am I missing something?