[Piglit] [BUG]Symbols are not replaced correctly when generating the test's URL

[Emil Velikov]

Hello list,

When generating HTML summary of the results some symbols are not escaped
correctly, thus the links created for the related tests are invalid. See the
following examples

glsl1-Preprocessor test 11 (#elif)
glean/glsl1-Preprocessor%20test%2011%20(#elif).html

glsl1-Preprocessor test 15 (nested #if, #elif)
glean/glsl1-Preprocessor%20test%2015%20(nested%20#if, #elif).html

Afaics the parser trips over as soon at it reaches #. I'm suspecting that
other tests that have # in their name will also be affected.

My current piglit is build on

commit 3457f015314e57007b74918f79d8d02e4ada6ad7
Author: Dylan Baker <dylanx.c.baker at intel.com>
Date:   Thu Aug 28 16:00:21 2014 -0700

    tests/all.py: Add assertions for bad characters in test names

    '/' is not allowed in test names since it is used as the separator for
    groups.


Cheers,
Emil