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-rw-r--r--core/modules/docker-ce/module.build2
1 files changed, 1 insertions, 1 deletions
diff --git a/core/modules/docker-ce/module.build b/core/modules/docker-ce/module.build
index fce31ebf..fd4a720b 100644
--- a/core/modules/docker-ce/module.build
+++ b/core/modules/docker-ce/module.build
@@ -25,7 +25,7 @@ module_init() {
[ -s "$sigfile" ] && continue
curl -fsSL "$url" > "$sigfile" \
|| perror "Could not download docker gpg key from $url"
- if grep -qF '---BEGIN' "$sigfile"; then
+ if grep -qF -- '---BEGIN' "$sigfile"; then
mv "$sigfile" "${sigfile}.asc"
sigfile="${sigfile}.asc"
else