fix help text

IPython/utils/text.py

@@ -661,7 +661,7 b' def compute_item_matrix(items, row_first=False, empty=None, *args, **kwargs) :'
     items
         list of strings to columize
     row_first : (default False)
-        Whether to to compute columns for a row-first matrix instead ofr
+        Whether to compute columns for a row-first matrix instead of
         column-first (default).
     empty : (default None)
         default value to fill list if needed
@@ -726,7 +726,7 b" def columnize(items, row_first=False, separator=' ', displaywidth=80):"
         The strings to process.
 
     row_first : (default False)
-        Whether to to compute columns for a row-first matrix instead ofr
+        Whether to compute columns for a row-first matrix instead of
         column-first (default).
 
     separator : str, optional [default is two spaces]