Fixed omission of test files in sdist package.

Author: ondrap

json-stream.cabal

@@ -1,5 +1,5 @@
 name:                json-stream
-version:             0.3.2.1
+version:             0.3.2.2
 synopsis:            Incremental applicative JSON parser
 description:         Easy to use JSON parser fully supporting incremental parsing.
                      Parsing grammar in applicative form.
@@ -20,7 +20,7 @@ maintainer:          [email protected]
 category:            Text, JSON
 build-type:          Simple
 cabal-version:       >=1.10
-extra-source-files:  c_lib/lexer.h, changelog.md
+extra-source-files:  c_lib/lexer.h, changelog.md, benchmarks/json-data/*.json
 
 source-repository head
   type: git