deps tree differences relating to tools-reader

gistfile1.md

Couple of extracts from lein deps :tree

With

:dependencies [[com.taoensso/encore "2.92.0"]
                 [org.clojure/clojurescript "1.9.946"]]

[com.taoensso/encore "2.92.0"]
   [com.taoensso/truss "1.5.0"]
   [org.clojure/tools.reader "0.10.0"]
...
 [org.clojure/clojurescript "1.9.946" :exclusions [[cljsjs/react-dom] [cljsjs/react]]]
   [com.google.javascript/closure-compiler-unshaded "v20170910"]
     [args4j "2.33"]
     [com.google.code.findbugs/jsr305 "3.0.1"]
     [com.google.code.gson/gson "2.7"]
     [com.google.errorprone/error_prone_annotations "2.0.18"]
     [com.google.guava/guava "20.0"]
     [com.google.javascript/closure-compiler-externs "v20170910"]
     [com.google.jsinterop/jsinterop-annotations "1.0.0"]
     [com.google.protobuf/protobuf-java "3.0.2"]
   [org.clojure/data.json "0.2.6"]
   [org.clojure/google-closure-library "0.0-20170809-b9c14c6b"]
     [org.clojure/google-closure-library-third-party "0.0-20170809-b9c14c6b"]
   [org.mozilla/rhino "1.7R5"]
 [org.clojure/core.async "0.3.443" :exclusions [[cljsjs/react-dom] [cljsjs/react]]]
   [org.clojure/tools.analyzer.jvm "0.7.0"]
     [org.clojure/core.memoize "0.5.9"]
       [org.clojure/core.cache "0.6.5"]
         [org.clojure/data.priority-map "0.0.7"]
     [org.clojure/tools.analyzer "0.6.9"]
     [org.ow2.asm/asm-all "4.2"]

With

     :dependencies [[com.taoensso/encore "2.92.0" :exclusions [org.clojure/tools.reader]]
                 [org.clojure/clojurescript "1.9.946"]]

 [com.taoensso/encore "2.92.0" :exclusions [[cljsjs/react-dom] [cljsjs/react] [org.clojure/tools.reader]]]
   [com.taoensso/truss "1.5.0"]

 [org.clojure/clojurescript "1.9.946" :exclusions [[cljsjs/react-dom] [cljsjs/react]]]
   [com.google.javascript/closure-compiler-unshaded "v20170910"]
     [args4j "2.33"]
     [com.google.code.findbugs/jsr305 "3.0.1"]
     [com.google.code.gson/gson "2.7"]
     [com.google.errorprone/error_prone_annotations "2.0.18"]
     [com.google.guava/guava "20.0"]
     [com.google.javascript/closure-compiler-externs "v20170910"]
     [com.google.jsinterop/jsinterop-annotations "1.0.0"]
     [com.google.protobuf/protobuf-java "3.0.2"]
   [org.clojure/data.json "0.2.6"]
   [org.clojure/google-closure-library "0.0-20170809-b9c14c6b"]
     [org.clojure/google-closure-library-third-party "0.0-20170809-b9c14c6b"]
   [org.clojure/tools.reader "1.1.0"]
   [org.mozilla/rhino "1.7R5"]