telegraf: set home variable in uci-defaults script

avoid a non-critical error caused by getent not being installed

Signed-off-by: Niklas Thorild <niklas@thorild.se>

Author: niklasthorild

utils/telegraf/files/etc/uci-defaults/90-telegraf

@@ -3,6 +3,8 @@
 
 [ -f /etc/telegraf.conf ] && exit 0
 
+export HOME=/root
+
 /usr/bin/telegraf config create > /etc/telegraf.conf
 
 exit 0