pkg-pull-updates: Fix doctest in get_remote_version()

Signed-off-by: Emanuele Aina <emanuele.aina@collabora.com>

package-source-builder/overlay/usr/bin/apertis-pkg-pull-updates

@@ -98,7 +98,7 @@ def get_remote_version(suite, package):
               - armhf
               - i386
 
-    >>> get_remote_version_madison('jessie', 'dash')
+    >>> get_remote_version('jessie', 'dash')
     fetch https://qa.debian.org/madison.php?package=dash&yaml=on&s=jessie
     Version('0.5.7-4')
     """