slices: correct doc comment for SortStableFunc

The doc comment wasn't starting with correct func name.

Change-Id: I7e2b4d9a006f41459f94feff0692491242a2742b
GitHub-Last-Rev: 884e91692ee8e37ad2e560a47f39e6a71b9445d9
GitHub-Pull-Request: golang/exp#47
Reviewed-on: https://go-review.googlesource.com/c/exp/+/455237
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Auto-Submit: Keith Randall <khr@google.com>
diff --git a/slices/sort.go b/slices/sort.go
index c22e74b..35a5d8f 100644
--- a/slices/sort.go
+++ b/slices/sort.go
@@ -30,7 +30,7 @@
 	pdqsortLessFunc(x, 0, n, bits.Len(uint(n)), less)
 }
 
-// SortStable sorts the slice x while keeping the original order of equal
+// SortStableFunc sorts the slice x while keeping the original order of equal
 // elements, using less to compare elements.
 func SortStableFunc[E any](x []E, less func(a, b E) bool) {
 	stableLessFunc(x, len(x), less)