ddns-scripts: fix one.com prerm test syntax

Add the missing spaces around the test bracket in the one.com
pre-removal script and escape IPKG_INSTROOT consistently with the other
subpackages.

Signed-off-by: Jiang Tengfei <redacted>

diff --git a/net/ddns-scripts/Makefile b/net/ddns-scripts/Makefile
index 6d50cb838f57e19efe9bd5f2c34ba93a03f6ed6c..aa49f64e935364b15182afcdf98f231979df1308 100644 (file)
--- a/net/ddns-scripts/Makefile
+++ b/net/ddns-scripts/Makefile
@@ -933,7 +933,7 @@ endef
 
 define Package/ddns-scripts-one/prerm
 #!/bin/sh
-if [-z "${IPKG_INSTROOT}" ]; then
+if [ -z "$${IPKG_INSTROOT}" ]; then
        /etc/init.d/ddns stop
 fi
 exit 0