Update frontend/dockerfile/docs/reference.md

Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com> Signed-off-by: Tristan Stenner <ttstenner@gmail.com>
moby · Nov 1, 2023 · 2f3d0bc · 2f3d0bc
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commit 2f3d0bc
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/frontend/dockerfile/docs/reference.md b/frontend/dockerfile/docs/reference.md
@@ -289,8 +289,8 @@ modifiers as specified below:
   the result, otherwise the result is the empty string.
 
 The following variable replacements are supported in a pre-release version of
-Dockerfile syntax when defining `#syntax=docker/dockerfile-upstream:master` on top
-of your Dockerfile:
+Dockerfile syntax, when using the `# syntax=docker/dockerfile-upstream:master` syntax
+directive in your Dockerfile:
 
 - `${variable#pattern}` removes the shortest match of `pattern` from `variable`,
   seeking from the start of the string.