src/sage/groups/matrix_gps/matrix_group.py: Fix # needs

Author: Matthias Koeppe

src/sage/groups/matrix_gps/matrix_group.py

@@ -5,7 +5,7 @@
 
 Loading, saving, ... works::
 
-    sage: # needs sage.libs
+    sage: # needs sage.libs.gap
     sage: G = GL(2,5); G
     General Linear Group of degree 2 over Finite Field of size 5
     sage: TestSuite(G).run()