fix syntax error in the if test

Armando Migliaccio · Armando Migliaccio · commit 1f8efd93d9e2 · 2012-06-02T01:47:27.000+01:00
switch to using -f rather than -a. This has been overlooked
in a review recently merged. Without this fix, devstack on
XenServer is broken.

Change-Id: I1882cc70528772287241848adea3a520738d4144
diff --git a/tools/xen/scripts/install-os-vpx.sh b/tools/xen/scripts/install-os-vpx.sh
@@ -19,12 +19,7 @@
 
 set -eux
 
-if [ -a /etc/xensource-inventory]
-then
-    . /etc/xensource-inventory
-else
-    . /etc/xcp/inventory
-fi
+[[ -f "/etc/xensource-inventory" ]] && source "/etc/xensource-inventory" || source "/etc/xcp/inventory"
 
 NAME="XenServer OpenStack VPX"
 DATA_VDI_SIZE="500MiB"
