Fix typo in upgrade notes

diff --git a/NEWS.txt b/NEWS.txt
index 53136a66904d60ae1da6ba7d8076ec9ae6c8515d..90f23eced52c000510b0e2ca98dfd31fd1e1e0b4 100644 (file)
--- a/NEWS.txt
+++ b/NEWS.txt
@@ -21,7 +21,7 @@ Upgrade notes
     - The way the hashes are calculated has changed, so you won't get cache
       hits for compilation results stored by older ccache versions. Because of
       this, you might as well clear the old cache directory with `ccache
-      --cleanup` if you want, unless you plan to keep using an older ccache
+      --clear` if you want, unless you plan to keep using an older ccache
       version.