debian/changelog: Fix a typo

debian/changelog

@@ -1,7 +1,7 @@
 apt (0.7.26~exp8) experimental; urgency=low
 
   * methods/ftp.h:
-    - Handle different logins are on the same server (Closes: #586904).
+    - Handle different logins on the same server (Closes: #586904).
   * apt-pkg/deb/deblistparser.cc:
     - Handle architecture wildcards (Closes: #547724).