Improve a comment in errors2

Author: mo8it

exercises/13_error_handling/errors2.rs

@@ -5,11 +5,11 @@
 // the player typed in the quantity, we get it as a string. They might have
 // typed anything, not just numbers!
 //
-// Right now, this function isn't handling the error case at all (and isn't
-// handling the success case properly either). What we want to do is: If we call
-// the `total_cost` function on a string that is not a number, that function
-// will return a `ParseIntError`. In that case, we want to immediately return
-// that error from our function and not try to multiply and add.
+// Right now, this function isn't handling the error case at all. What we want
+// to do is: If we call the `total_cost` function on a string that is not a
+// number, that function will return a `ParseIntError`. In that case, we want to
+// immediately return that error from our function and not try to multiply and
+// add.
 //
 // There are at least two ways to implement this that are both correct. But one
 // is a lot shorter!

solutions/13_error_handling/errors2.rs

@@ -5,11 +5,11 @@
 // the player typed in the quantity, we get it as a string. They might have
 // typed anything, not just numbers!
 //
-// Right now, this function isn't handling the error case at all (and isn't
-// handling the success case properly either). What we want to do is: If we call
-// the `total_cost` function on a string that is not a number, that function
-// will return a `ParseIntError`. In that case, we want to immediately return
-// that error from our function and not try to multiply and add.
+// Right now, this function isn't handling the error case at all. What we want
+// to do is: If we call the `total_cost` function on a string that is not a
+// number, that function will return a `ParseIntError`. In that case, we want to
+// immediately return that error from our function and not try to multiply and
+// add.
 //
 // There are at least two ways to implement this that are both correct. But one
 // is a lot shorter!