maps, slices: fix variable name and comment in example

Change-Id: I1c837820bdd64b61fca46d45677664b2bb2be606
Reviewed-on: https://go-review.googlesource.com/c/go/+/605356
Commit-Queue: Ian Lance Taylor <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Run-TryBot: shuang cui <[email protected]>
Reviewed-by: Carlos Amedee <[email protected]>
Auto-Submit: Ian Lance Taylor <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>
Reviewed-by: Ian Lance Taylor <[email protected]>

Author: cuishuang

src/maps/example_test.go

@@ -167,8 +167,8 @@ func ExampleValues() {
 		10:   "Ten",
 		1000: "THOUSAND",
 	}
-	keys := slices.Sorted(maps.Values(m1))
-	fmt.Println(keys)
+	values := slices.Sorted(maps.Values(m1))
+	fmt.Println(values)
 	// Output:
 	// [THOUSAND Ten one]
 }

src/slices/example_test.go

@@ -310,7 +310,7 @@ func ExampleSortStableFunc() {
 		{"Bob", 24},
 		{"Alice", 55},
 	}
-	// Stable sort by name, keeping age ordering of Alices intact
+	// Stable sort by name, keeping age ordering of Alice intact
 	slices.SortStableFunc(people, func(a, b Person) int {
 		return strings.Compare(a.Name, b.Name)
 	})