diff --git a/src/smeagol/authenticate.clj b/src/smeagol/authenticate.clj
index f4777ff..9b82fcd 100644
--- a/src/smeagol/authenticate.clj
+++ b/src/smeagol/authenticate.clj
@@ -128,7 +128,7 @@
   "Return the map of features of this user, if any."
   [username]
   (if
-    (and username (> (count (str username)) 0))
+    (and username (pos? (count (str username))))
     ((keyword username) (get-users))))
 
 
@@ -138,7 +138,7 @@
   (timbre/info  "Trying to add user " username)
   (cond
     (not (string? username)) (throw (Exception. "Username must be a string."))
-    (= (count username) 0) (throw (Exception. "Username cannot be zero length"))
+    (zero? (count username)) (throw (Exception. "Username cannot be zero length"))
     true (let [users (get-users)
                user ((keyword username) users)
                password (if
@@ -146,7 +146,7 @@
                           (password/encrypt newpass))
                details {:email email
                         :admin (if
-                                 (and (string? admin) (> (count admin) 0))
+                                 (and (string? admin) (pos? (count admin)))
                                  true
                                  false)}
                ;; if we have a valid password we want to include it in the details to update.
diff --git a/src/smeagol/diff2html.clj b/src/smeagol/diff2html.clj
index ea89c91..6cf0dda 100644
--- a/src/smeagol/diff2html.clj
+++ b/src/smeagol/diff2html.clj
@@ -47,16 +47,6 @@
 (defn diff2html
   "Convert this string, assumed to be in diff format, to HTML."
   [^String diff-text]
-  (apply str
-         (flatten
-           (list "<div class='change'>"
-                 (join "\n"
-                       (remove nil?
-                               (map mung-line
-                                    ;; The first five lines are boilerplate, and
-                                    ;; uninteresting for now
-                                    (drop 5
-                                          (split-lines diff-text)))))
-                 "</div>"))))
+  (clojure.string/join (flatten (list "<div class='change'>" (join "\n" (remove nil? (map mung-line (drop 5 (split-lines diff-text))))) "</div>"))))
 
 
diff --git a/src/smeagol/formatting.clj b/src/smeagol/formatting.clj
index 8ddd6da..6a874c8 100644
--- a/src/smeagol/formatting.clj
+++ b/src/smeagol/formatting.clj
@@ -115,7 +115,7 @@
   corresponding inclusion should be inserted."
   [index result fragment fragments processed]
   (process-text
-    (+ index 1)
+    (inc index)
     result
     fragments
     (cons fragment processed)))
@@ -133,18 +133,8 @@
   (let
     [kw (keyword (str "inclusion-" index))]
     (process-text
-      (+ index 1)
-      (assoc
-        result
-        :inclusions
-        (assoc
-          (:inclusions result)
-          kw
-          (apply
-            formatter
-            (list
-              (subs fragment (count token))
-              index))))
+      (inc index)
+      (assoc-in result [:inclusions kw] (apply formatter (list (subs fragment (count token)) index)))
       (rest fragments)
       (cons kw processed))))
 
diff --git a/src/smeagol/history.clj b/src/smeagol/history.clj
index ae81fa8..8b65f8f 100644
--- a/src/smeagol/history.clj
+++ b/src/smeagol/history.clj
@@ -41,11 +41,7 @@
   [^String log-entry ^String file-path]
   (timbre/info (format "searching '%s' for '%s'" log-entry file-path))
   (cond
-    (not
-      (empty?
-        (filter
-          #(= (first %) file-path)
-      (:changed_files log-entry))))
+    (seq (filter (fn* [p1__341301#] (= (first p1__341301#) file-path)) (:changed_files log-entry)))
     log-entry))
 
 
@@ -121,7 +117,7 @@
                  new-parse)
                (PathFilter/create file-path))
              out))))
-     (.toString out))))
+     (str out))))
 
 
 (defn fetch-version
@@ -144,4 +140,4 @@
       (throw (IllegalStateException.
                (str "Did not find expected file '" file-path "'"))))
     (.copyTo (.open repo (.getObjectId tw 0)) out)
-    (.toString out)))
+    (str out)))
diff --git a/src/smeagol/routes/wiki.clj b/src/smeagol/routes/wiki.clj
index 6b2e219..a8fad06 100644
--- a/src/smeagol/routes/wiki.clj
+++ b/src/smeagol/routes/wiki.clj
@@ -92,9 +92,7 @@
          file-path (cjio/file util/content-dir file-name)
          exists? (.exists (cjio/as-file file-path))
          user (session/get :user)]
-     (if (not exists?)
-       (timbre/info (format "File '%s' not found; creating a new file" file-path))
-       (timbre/info (format "Opening '%s' for editing" file-path)))
+     (if-not exists? (timbre/info (format "File '%s' not found; creating a new file" file-path)) (timbre/info (format "Opening '%s' for editing" file-path)))
      (cond src-text (process-source params suffix request)
            true
            (layout/render template