[Fix #2980] Remove unnecessary quoting for jack-in middleware list (#2981)

This also fixes cider-jack-in for `'clojure-cli` not working on windows.

Author: jpathy

cider.el

@@ -571,7 +571,7 @@ one used."
                                 (append dependencies cider-jack-in-lein-plugins))
                        " "))
          (middleware (mapconcat
-                      (apply-partially #'format "\\\"%s\\\"")
+                      (apply-partially #'format "%s")
                       (cider-jack-in-normalized-nrepl-middlewares)
                       ","))
          (main-opts (format "\"-m\" \"nrepl.cmdline\" \"--middleware\" \"[%s]\"" middleware)))

test/cider-tests.el

@@ -301,7 +301,7 @@
       (let ((expected (string-join '("clojure -Sdeps '{:deps {nrepl/nrepl {:mvn/version \"0.8.3\"} "
                                      "cider/cider-nrepl {:mvn/version \"0.25.7\"}} "
                                      ":aliases {:cider/nrepl {:main-opts [\"-m\" \"nrepl.cmdline\" \"--middleware\""
-                                     " \"[\\\"cider.nrepl/cider-middleware\\\"]\"]}}}' -M:cider/nrepl")
+                                     " \"[cider.nrepl/cider-middleware]\"]}}}' -M:cider/nrepl")
                                    "")))
         (setq-local cider-allow-jack-in-without-project t)
         (setq-local cider-clojure-cli-command "clojure")
@@ -315,7 +315,7 @@
       (let ((expected (string-join '("clojure -Sdeps '{:deps {nrepl/nrepl {:mvn/version \"0.8.3\"} "
                                      "cider/cider-nrepl {:mvn/version \"0.25.7\"}} "
                                      ":aliases {:cider/nrepl {:main-opts [\"-m\" \"nrepl.cmdline\" \"--middleware\""
-                                     " \"[\\\"cider.nrepl/cider-middleware\\\"]\"]}}}' -M:dev:test:cider/nrepl")
+                                     " \"[cider.nrepl/cider-middleware]\"]}}}' -M:dev:test:cider/nrepl")
                                    "")))
         (setq-local cider-clojure-cli-aliases "-A:dev:test")
         (setq-local cider-allow-jack-in-without-project t)
@@ -329,7 +329,7 @@
       (let ((expected (string-join '("-Sdeps '{:deps {nrepl/nrepl {:mvn/version \"0.8.3\"} "
                                      "cider/cider-nrepl {:mvn/version \"0.25.7\"}} "
                                      ":aliases {:cider/nrepl {:main-opts [\"-m\" \"nrepl.cmdline\" \"--middleware\""
-                                     " \"[\\\"cider.nrepl/cider-middleware\\\"]\"]}}}' -M:test:cider/nrepl")
+                                     " \"[cider.nrepl/cider-middleware]\"]}}}' -M:test:cider/nrepl")
                                    ""))
             (deps '(("nrepl/nrepl" "0.8.3"))))
         (let ((cider-clojure-cli-aliases "test"))
@@ -346,7 +346,7 @@
       (let ((expected (string-join '("-J-Djdk.attach.allowAttachSelf -Sdeps '{:deps {nrepl/nrepl {:mvn/version \"0.8.3\"} "
                                      "cider/cider-nrepl {:mvn/version \"0.25.7\"}} "
                                      ":aliases {:cider/nrepl {:main-opts [\"-m\" \"nrepl.cmdline\" \"--middleware\""
-                                     " \"[\\\"cider.nrepl/cider-middleware\\\"]\"]}}}' -M:test:cider/nrepl")
+                                     " \"[cider.nrepl/cider-middleware]\"]}}}' -M:test:cider/nrepl")
                                    ""))
             (deps '(("nrepl/nrepl" "0.8.3"))))
         (let ((cider-clojure-cli-aliases "test"))