newline fix

main.jl

@@ -33,7 +33,8 @@ for line in lines
         if word != false
             # begin reading definition
             defining = true
-            defn = strcat(defn, replace(line, "Defn: ", ""))
+            replaced = replace(line, "Defn: ", "")
+            defn = "$defn$replaced"
         end
         continue
     end
@@ -47,7 +48,7 @@ for line in lines
                 continue
             end
 
-            defn = strcat(defn, line)
+            defn = "$defn $line"
         end
     end
 end