File gmetad-service-btrfs-check.patch of Package ganglia

--- gmetad/gmetad.service.in.orig	2017-10-24 10:19:09.768304910 +0200
+++ gmetad/gmetad.service.in	2017-10-24 10:19:50.152315382 +0200
@@ -5,6 +5,7 @@
 [Service]
 Type=forking
 PIDFile=@runstatedir@/gmetad.pid
+ExecStartPre=@libdir@/ganglia/btrfs-subvol-test.sh @varstatedir@/ganglia
 ExecStart=@sbindir@/gmetad --pid-file=@runstatedir@/gmetad.pid
 EnvironmentFile=-@envdir@/gmetad