Add a way to have {{doc.url.path}} without a trailing slash

[uxder]

grow/grow/routing/path_format.py

Line 45 in 4f0c21f

if path and not path.endswith('/'):

always adds a trailing slash to the url.

In certain cases, it is undesirable to have the trailing slash. Could we create a way to get the route without a trailing slash?

Two key cases I'm trying to solve:

{{doc.url}}

    <link rel="canonical" href="{{doc.url}}">

always results in a trailing slash but we need to be able to specify one without it.

    <link rel="canonical" href="/about/">

Sitemap

Sitemap generation always results in a trailing slash.

<url>
<loc>https://xxx.com/about/</loc>
</url>

Desired:

<url>
<loc>https://xxx.com/about</loc>
</url>