add cautionary hint

1 files changed, 2 insertions, 0 deletions

diff --git a/bin/get-package-updates b/bin/get-package-updates
index ae3c018..8d2f370 100755
--- a/bin/get-package-updates
+++ b/bin/get-package-updates
@@ -25,6 +25,8 @@ usage() {
   >&2 echo '  -m|--max-upstream-packages $number:'
   >&2 echo '                Do not update more than $number upstream packages.'
   >&2 echo '                Do not update git head of state repository.'
+  >&2 echo '                USE WITH CAUTION: This may remove packages, if they'
+  >&2 echo '                were moved. Always do a final run without -m.'
   >&2 echo '  -n|--no-pull: Do not pull git repos, merely reorder build list.'
   >&2 echo '                Conflicts -d.'
   >&2 echo '  -r|--recent-modifications:'