Fix typo

Change-Id: I82699bebb9b8ccee41cce3aabb092913df33b85d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/98178
Tested-by: Jenkins
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>

include/vcl/BitmapFilter.hxx

@@ -20,7 +20,7 @@ namespace vcl::bitmap
 {
 // Generates strip ranges and run the input function with the start and
 // end as parameters. The additional parameter bLast denotes if the
-// iteration is teh last one.
+// iteration is the last one.
 //
 // Example:
 // first = 0, last = 100, STRIP_SIZE = 32