Merge topic 'Tests-NinjaPrivateDeps-error-message' into release-3.28

fe8a5a6fbf Tests/NinjaPrivateDeps: fix error message for Build-PrivateFileSet-check

Acked-by: Kitware Robot <[email protected]>
Acked-by: buildbot <[email protected]>
Merge-request: !8882

Tests/RunCMake/NinjaPrivateDeps/CMP0154-NEW-Build-PrivateFileSet-check.cmake

@@ -1,3 +1,3 @@
 if (NOT EXISTS ${RunCMake_TEST_BINARY_DIR}/private.h)
-  set(RunCMake_TEST_FAILED "Private header generated before compilation.")
+  set(RunCMake_TEST_FAILED "Private header should be generated for target compilation")
 endif()