Comma is valid in query and doesn't need escaping

[lmazuel]

@johanste let's see what the CI (that includes testserver) will say

[lmazuel]

HTTP spec RFC 3986:

   query         = *( pchar / "/" / "?" )

   pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"

   pct-encoded   = "%" HEXDIG HEXDIG

   unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
   sub-delims    = "!" / "$" / "&" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "="

[codecov-io]

Codecov Report

Merging #169 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master     #169   +/-   ##
=======================================
  Coverage   87.84%   87.84%           
=======================================
  Files          25       25           
  Lines        2583     2583           
=======================================
  Hits         2269     2269           
  Misses        314      314

Impacted Files	Coverage Δ
msrest/serialization.py	91.03% <100%> (ø)	⬆️

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[johanste]

We are still not escaping the individual items in the list. Which I would expect. And which we should have a test for. But, as you said, let's see what happens in the CI first :).

[lmazuel]

See #186 instead