fix add user command

docker/Dockerfile.go_build

@@ -19,7 +19,7 @@ COPY --from=builder /go/src/github.com/seaweedfs/seaweedfs/docker/entrypoint.sh
 # Install dependencies and create non-root user
 RUN apk add --no-cache fuse && \
     addgroup -g 1000 seaweed && \
-    adduser -D -u 1000 -g seaweed seaweed
+    adduser -D -u 1000 -G seaweed seaweed
 
 # volume server gprc port
 EXPOSE 18080

docker/Dockerfile.local

@@ -10,7 +10,7 @@ COPY ./entrypoint.sh /entrypoint.sh
 # Install dependencies and create non-root user
 RUN apk add --no-cache fuse curl && \
     addgroup -g 1000 seaweed && \
-    adduser -D -u 1000 -g seaweed seaweed
+    adduser -D -u 1000 -G seaweed seaweed
 
 # volume server grpc port
 EXPOSE 18080

docker/Dockerfile.rocksdb_large

@@ -36,7 +36,7 @@ COPY --from=builder /go/src/github.com/seaweedfs/seaweedfs/docker/entrypoint.sh
 # Install dependencies and create non-root user
 RUN apk add --no-cache fuse snappy gflags && \
     addgroup -g 1000 seaweed && \
-    adduser -D -u 1000 -g seaweed seaweed
+    adduser -D -u 1000 -G seaweed seaweed
 
 # volume server gprc port
 EXPOSE 18080

docker/Dockerfile.rocksdb_large_local

@@ -19,7 +19,7 @@ COPY --from=builder /go/src/github.com/seaweedfs/seaweedfs/docker/entrypoint.sh
 # Install dependencies and create non-root user
 RUN apk add --no-cache fuse snappy gflags tmux && \
     addgroup -g 1000 seaweed && \
-    adduser -D -u 1000 -g seaweed seaweed
+    adduser -D -u 1000 -G seaweed seaweed
 
 # volume server gprc port
 EXPOSE 18080