Use LEIN_VERSION env var instead of system property.

bin/lein

@@ -163,7 +163,7 @@ else
     # TODO: add more to the boot classpath
     test $CYGWIN_JLINE && stty -icanon min 1 -echo
     exec $RLWRAP $JAVA_CMD -Xbootclasspath/a:"$CLOJURE_JAR" -client $JAVA_OPTS \
-                      -cp "$CLASSPATH" -Dleiningen.version="$LEIN_VERSION" $JLINE \
-                      clojure.main -e "(use 'leiningen.core)(-main)" $NULL_DEVICE $@
+        -cp "$CLASSPATH" $JLINE clojure.main -e "(use 'leiningen.core)(-main)" \
+        $NULL_DEVICE $@
     test $CYGWIN_JLINE && stty icanon echo
 fi

src/leiningen/jar.clj

@@ -50,7 +50,7 @@
         :bytes (.getBytes bin)}])))
 
 (def default-manifest
-     {"Created-By" (str "Leiningen " (System/getProperty "leiningen.version"))
+     {"Created-By" (str "Leiningen " (System/getenv "LEIN_VERSION"))
       "Built-By" (System/getProperty "user.name")
       "Build-Jdk" (System/getProperty "java.version")})
 

src/leiningen/version.clj

@@ -2,6 +2,6 @@
   "Print Leiningen's version to standard out.")
 
 (defn version []
-  (println "Leiningen" (System/getProperty "leiningen.version")
+  (println "Leiningen" (System/getenv "LEIN_VERSION")
            "on Java" (System/getProperty "java.version")
            (System/getProperty "java.vm.name")))