--- a/src/ov-fcn-inline.cc	Sat Feb 26 16:21:02 2011 -0500
+++ b/src/ov-fcn-inline.cc	Sat Feb 26 17:28:11 2011 -0800
@@ -763,13 +763,13 @@
                     }
                   else
                     {
-                      error ("inline: numeric argument must be nonnegative");
+                      error ("inline: N must be positive or zero");
                       return retval;
                     }
                 }
               else
                 {
-                  error ("inline: expecting second argument to be an integer");
+                  error ("inline: N must be an integer");
                   return retval;
                 }
             }
@@ -794,7 +794,7 @@
           retval = octave_value (new octave_fcn_inline (fun, fargs));
         }
       else
-        error ("inline: first argument must be a string");
+        error ("inline: STR argument must be a string");
     }
   else
     print_usage ();
@@ -829,7 +829,7 @@
       if (fn)
         retval = octave_value (fn->fcn_text ());
       else
-        error ("formula: must be an inline function");
+        error ("formula: FUN must be an inline function");
     }
   else
     print_usage ();
@@ -865,7 +865,7 @@
           retval = t2;
         }
       else
-        error ("argnames: argument must be an inline function");
+        error ("argnames: FUN must be an inline function");
     }
   else
     print_usage ();