Improve comtex

.emacs

@@ -924,14 +924,15 @@
 ;; Une ligne séparatrice de commentaire en LaTeX
 
 (defun comtex ()
+  "Add a comment line composed of user giver symbol."
   (interactive)
   (let ((comsymb (read-from-minibuffer "Quel symbole : ")))
-    (insert "%")
-    (setq myiter 70)
-    (while (> myiter 0)
-      (setq myiter (- myiter 1))
-      (insert comsymb)
-      )
+    (insert "% ")
+    (let ((myiter 70))
+      (while (> myiter 0)
+	(setq myiter (- myiter 1))
+	(insert comsymb)
+	))
     (insert "\n")
     )
   )