Merge pull request #5246 from ivanov/less-pylab

less %pylab, more cowbell!

IPython/core/magics/pylab.py

@@ -138,7 +138,7 b' class PylabMagics(Magics):'
         print ("Populating the interactive namespace from numpy and matplotlib")
         if clobbered:
             warn("pylab import has clobbered these variables: %s"  % clobbered +
-            "\n`%pylab --no-import-all` prevents importing * from pylab and numpy"
+            "\n`%matplotlib` prevents importing * from pylab and numpy"
             )
     
     def _show_matplotlib_backend(self, gui, backend):