[xen master] tools: handle missing xencommons in xen-init-dom0.service

[patchbot@xxxxxxx]

commit 27f32dbdb1b11d171f0fa4dfd3263b44e9f7c71c
Author:     Olaf Hering <olaf@xxxxxxxxx>
AuthorDate: Tue May 4 16:31:28 2021 +0200
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue May 4 19:10:43 2021 +0100

    tools: handle missing xencommons in xen-init-dom0.service
    
    sysconfig files are not mandatory.
    Adjust xen-init-dom0.service to handle a missing sysconfig file by
    prepending a dash to the to-be-sourced filename.
    
    Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 tools/hotplug/Linux/systemd/xen-init-dom0.service.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/hotplug/Linux/systemd/xen-init-dom0.service.in 
b/tools/hotplug/Linux/systemd/xen-init-dom0.service.in
index beed3126c6..98779b8507 100644
--- a/tools/hotplug/Linux/systemd/xen-init-dom0.service.in
+++ b/tools/hotplug/Linux/systemd/xen-init-dom0.service.in
@@ -7,7 +7,7 @@ ConditionPathExists=/proc/xen/capabilities
 [Service]
 Type=oneshot
 RemainAfterExit=true
-EnvironmentFile=@CONFIG_DIR@/@CONFIG_LEAF_DIR@/xencommons
+EnvironmentFile=-@CONFIG_DIR@/@CONFIG_LEAF_DIR@/xencommons
 ExecStartPre=/bin/grep -q control_d /proc/xen/capabilities
 ExecStart=@LIBEXEC_BIN@/xen-init-dom0 $XEN_DOM0_UUID
 
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generated by git-patchbot for /home/xen/git/xen.git#master